4.67 from 639 votes

Amazing Pork Loin In The Crock Pot Every Time

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Juicy and easy, this recipe will teach you how to cook pork loin in the crock pot that is a hit with the whole family. This recipe makes a sizeable amount for dinner and is super simple to throw in your slow cooker with just a few ingredients. Prep your juicy pork loin roast and come home to dinner ready to go with this slow cooker recipe.

How To Cook Amazing Pork Loin In The Crock Pot Every Time

*This post was originally sponsored by the Ohio Pork Council, but all opinions are my own.

Sliced pork loin on a platter with two dinner plates with green beans and carrots next to the platter.


 

Delicious Pork Loin In The Crock Pot Is Perfect For Dinner

When it came to cooking a large roast such as this pork loin, most of my food memories come from when I would meet up with my Italian extended family as a kid. I remember my Great Aunt pulling out all the stops when we were there for a Sunday dinner. It didn’t happen often as they didn’t live close, but those visits sure made an impression.

I’m not sure if she made these gigantic feasts just because we were there, or if every Sunday was a giant feast, but man were they delicious. I think they always thought I was just playing, but secretly I was watching every move they made in the kitchen.

One of my favorite feasts other than pasta (Italian blood!) was when she made juicy pork loin roast in the crock pot, fresh garden green beans, and fresh bread picked up from the bakery made that day. The whole family ran to the table to dive in.

My Slow Cooker Dr. Pepper ribs are tender, fall off the bone pork ribs that have the BEST flavor. Or use my recipe of How To Make Italian Sausage In The Instant Pot for another delicious dinner idea!

What I didn’t realize when I didn’t know how to make pork loin in the crock pot, is that it is so simple you don’t have to wait until Sunday.

Pork loin prepped ahead in your slow cooker makes a great recipe to go all day so you come home to the smell of dinner almost completely done.

A pair of tongs holding up a slice of pork loin over top of a plater and plates full of more pork loin and green beans on the table in the background.

How To Make Absolutely Amazing Pork Loin In The Crock Pot

Start off by picking up a pork loin at the store or butcher. I prefer boneless for this meal as it is fast and delicious without tons of prep.

Add your cooking spray and onions to the crockpot before you add your cut of meat with the fat side up. Then coat your pork in spices, add some broth and close the lid.

When you come back you want to make sure you check your meat with a meat thermometer that it is cooked to 145 degrees, that’s when you know it is done for sure. If it finishes earlier than you expect, you can always switch your crock pot to the warm setting.

What’s The Difference Between A Pork Tenderloin And A Pork Loin

These are two different cuts of pork and both are super flavorful pieces of pork for your roast but they work a little differently. Pork loins are wide cuts of meat, large enough you can cut a full slice from it similar to a steak. Pork Loin is a sold both with and without bones.

Pork tenderloin is smaller and thinner, and when cut makes more of a medallion size, and is always boneless. Pork tenderloins generally are one to two pounds, and most pork loins in the stores are two to five pounds.

Pork Loins generally lend themselves to a slow cooker recipes or roasting for a longer period of time, while pork tenderloin can be quickly cooked over higher heat.

Have pork tenderloin? Try this tasty Instant Pot Pork Tenderloin With Honey Balsamic Sauce, and don’t skip the amazing glaze!

A crock pot with a piece of pork loin fat side up on top of sliced onions and five small bowls of spices on the counter nearby.

My Kid Is A Picky Eater, Will They Like Pork Loin In The Crock Pot

All kids are different and for some kids, it takes a while to try new foods. Pork loin in the crockpot is lean and a soft meat dish though, which lends itself to kids liking this recipe.

It easily can be sliced into bite-sized pieces, or shredded which makes it fairly easy to chew for even toddlers and preschoolers.

You can also take leftovers and shred with some bbq sauce for an easy quick sandwich for kids (or you know, the whole family!), and it’s also great with roasted potato wedges or mashed potatoes.

How To Make Pork Gravy

Make my favorite gravy recipe with the drippings!: How To Make A Simple Pork Gravy In 10 Minutes (Or Less)

How Long To Cook Pork Loin In The Crock Pot

How long you cook your pork loin roast in the crock pot can vary depending on both the size of your pork loin and the age of your crock pot. Most pork loins vary between three to five pounds, and that can affect cooking time.

A four-pound boneless pork loin is usually done in about six hours when cooked on low. To make sure your roast pork loin is cooked to perfection, use a meat thermometer. The inside of the meat should register at a temperature of 145.

You can leave your meat on the warm setting for a little while after it is finished cooking, the pan liquid will help keep it from drying out.

You should also check out the Instant Pot Pork Carnitas. They are packed with flavor, moist and delicious just like this pork loin! Add it to your dinner list for Taco Tuesday to make tacos, burritos, nachos or bowls with rice. Or if you preder pasta try the creamy sausage pasta made all in one pot.

Can I Put Frozen Pork Loin In The Crock Pot?

You can put frozen pork loin in the crock pot and it will be delicious! To cook a frozen pork loin in the crock pot first season your meat just as you would if it was fresh. Allow the frozen pork loin to cook in the slow cooker for four hours on high or eight hours on low.

Check your meat to make sure the internal temperature reaches 145 degrees. Your final cook time may vary depending on the size of your pork loin. This timing is based on a frozen five-pound pork loin.

A crock pot with a piece of pork loin sitting on sliced onion and covered with spices before cooking.

Making this recipe for the holidays? You should try the orange honey ham glaze too, it’s a crowd-pleaser!

What Size Slow Cooker Should I Use?

I’ve edited this section as I’ve received a few emails from people having varying success with different size crockpots. I recommend a 4, 5 or 6-quart crockpot. It holds the right amount of liquid to meat ratio. Crockpots cook best if they are at least 3/4 full so you may want to adjust based on your machine and how big your meat is.

If you choose to cook it in a smaller crockpot (and I really only recommend this for a pork loin closer to 3 pounds) you may have to adjust the liquid in your pot down and check your meat sooner. A smaller crockpot sometimes means it cooks quicker because it’s fuller, so check carefully.

If you choose a bigger crockpot, adding a little more liquid is a good idea. A bigger crockpot can also work well if you decide to add extra vegetables (like carrots or potatoes) to the bottom of the crockpot.

Why The Onions?

By putting a layer of onions on the bottom of the crock pot, not only do you add flavor but it helps keep the meat from sticking to the crock pot. Win-win! This helps even more if you switch your crockpot to the warm setting after it’s finished cooking.

Want to make your pork loin in the oven? This moist oven-roasted pork loin recipe is my go-to recipe!

Do You Cook A Pork Loin Fat Side Up Or Down

Most people recommend cooking a pork loin fat side up. This ensures as the fat renders, it drips down the meat and adds flavor. You can also trim the fat before cooking the meat, but it will lose some flavor.

Pork Loin tends to be a fairly lean cut of meat, I recommend trimming any fat after cooking your roast.

A piece of meat is being cooked in a slow cooker.

Do You Need To Brown A Pork Loin Before Cooking It In The Crock Pot

Browning a pork loin before cooking your recipe adds lots of flavor to your meat, and is a great way to give your finished meat more depth of flavor. For busy parents like me though, it’s not mandatory to make sure your pork loin is flavorful.

I generally skip browning a pork loin because the cut of meat is large and I’m often in a hurry, but you can absolutely brown it before you cook it in the slow cooker if you choose.

Use the pan drippings from inside the crock pot and create a delicious pork gravy in ten minutes or less for your dinner.

Can Pork Loin Be Used For Pulled Pork?

You can use pork loin for pulled pork but it will make a large amount of pulled pork if you shred all three to five pounds! I use the estimate that one pound of pork will feed three people when shredded. If I shred pork loin for pulled pork I’ll usually do this with the leftovers after eating one meal as boneless pork chops like above.

To make pulled pork from your cooked pork loin cook your meat then remove the pork and the cooking juices from the crockpot. On a cutting board using two forks, shred the meat.

Put your meat back in the crockpot. Add roughly a half cup of either pan drippings OR broth for  every cup of meat and a half cup of BBQ sauce for every pound of meat.

Allow the shredded pork to cook on high in the slow cooker on high for a minimum 30 minutes or until bubbly and juicy.

Make pulled pork and top it with my Creamy Classic Coleslaw on top, it’s super delicious together! Or try it with sweet and savory pineapple pork loin in the crockpot.

Can I Add Potatoes Or Other Vegetables To My Crock Pot Roast Pork Loin?

You can add potatoes, carrots and even celery to the bottom of the crock pot with your pork line. We like yukon potatoes or red potatoes.

When adding potatoes, or other vegetables to the bottom of the crock pot I recommend adding an additional half cup of broth to make sure there is enough liquid in your crock pot.

When you cut your vegetables I like to leave them in large chunks as they will be in the crock pot for a while. I like to cut my potatoes and carrots down to the size of about half a golf ball but pieces that are a little larger are fine too. Keep your vegetable pieces all about the same size so they cook evenly.

I recommend removing the cooked vegetables from the slow cooker first before adding BBQ sauce if you are turning part of your pork loin into pulled pork. Simply keep the vegetables covered and warm until dinner.

If you don’t want to add the vegetables straight to the slow cooker, try my quick and easy roasted baby carrots with honey glaze. This side dish is delicious with pork loin.

Do You Put Meat Or Vegetables In The Crock Pot First?

The best way to cook additional vegtables such as potatoes and carrots is to put them under your meat with the onions. When the pork cooks it will drip down.

If you put your potatoes or carrots on the sides of the pork loin, they will still be tasty and delicious. I try to avoid having the vegetables all on top of the pork loin as they don’t always cook as evenly then. You also don’t benefit from the pork dripping down on top of the vegetables which adds flavor.

What Other Sides Should I Cook With Pork Loin?

Cooking a pork loin in the crock pot couldn’t be easier, and your family will love this for dinner. We serve it up as slices of pork alongside quickly roasted vegetables or a nice green salad. Corn, roasted potato wedges or mashed potatoes, cornbread muffins or rice also work nicely as a side. Sometimes we also serve this crock pork loin recipe with homemade gravy.

I like to sometimes make a larger pork loin so we have plenty of leftovers. These can be eaten as is of course, but also can be added to rice or even stir-fry. You can also shred part of the meat and add BBQ sauce to make pulled pork with the leftovers.

For a twist on this delicious pork loin recipe, try this Pork Loin With Pineapple In The Slow Cooker! Hawaiian-inspired pork that is sweet, savory and tender. Perfect over rice or with Hawaiian rolls!

HELP My Meat Cooked Really Fast/Turned Out Dry, What Happened?

Crockpots do vary from model to model, unfortunately I can’t account for every variation in equipment. Some of the new models have a venting slit that can affect cooking time. Some of the models also just cook hotter, which I know can be super frustrating.

To avoid this, any time you cook a new recipe I recommend checking it a little early. I usually start checking around 4 hours for a large chunk of meat like this recipe.

Some crockpots also have a built-in thermometer that can help you to check the temperature which is nice because you can check without opening the crockpot. But if your crockpot doesn’t have that feature, just check your meat with a meat thermometer as quick as you can to avoid lowering the temperature in the crockpot too much.

I just made this for dinner! Yum! We’re adding this to the after-practice-meal menu. Thanks for sharing!! My six year old loved it too!

Andrea – OMKP Reader

A square view of a crock pot with a piece of pork loin sitting on sliced onion and covered with spices before cooking.
Recipe

Super Simple Boneless Pork Loin In The Crockpot Recipe


Course Main Course
Cuisine American
Prep Time 15 minutes
Cook Time 6 hours
Total Time 6 hours 15 minutes
Servings 8 People
This super simple boneless pork loin recipe goes into the crockpot and comes out juicy, moist and delicious every time. Serve this lean meat with roasted vegetables for a delicious dinner for the whole family that kids will love too.

Ingredients  

  • 3-4 Pounds boneless pork loin
  • 1 large onion I prefer sweet onion or Vidalia
  • 2 tablespoons olive oil
  • 1 teaspoon granulated garlic
  • 1 teaspoon onion powder
  • 1 teaspoon black pepper
  • 1 teaspoon salt
  • ½ teaspoon paprika
  • 2 cups broth I prefer chicken broth but any broth works.
  • cooking spray

Instructions

  • Spray the bottom and sides of your crock pot with cooking spray.
  • Slice your onion into round circle slices.
  • Lay your pork loin on top of the onions, fat side up.
  • Drizzle olive oil over the top of the pork loin.
  • Sprinkle garlic, onion powder, black pepper, salt and paprika over pork loin. Give it a quick rub to ensure that the spices are distributed evenly.
  • Add two cups of broth to the bottom of the crock pot.
  • Close and cook the pork loin in your crock pot on LOW for 6 hours or on HIGH for four hours. Your meat should register at an internal temperature of 145 with a meat thermometer. .

Video

Notes

  • I make this recipe in a four-quart crockpot that I was gifted (thanks little bro). You could make this recipe in a four, five or six-quart crockpot but see my notes in the article.
  • If this is the first time you’ve made this recipe, I recommend checking your meat at four hours regardless of the temperature as sometimes crockpot temperatures can vary which can cause some to cook faster than others. Here are some great slow cooker tips if you think your slow cooker may not be cooking correctly. You can also test your slow cooker first if you think it may run too hot.
  • Remember pork loin (different from pork tenderloin, see above for more info) is a large piece of meat that is best cooked low and slow. This helps to render the fat in the meat so it becomes tender. Not cooking the meat long enough can sometimes produce meat that “seems dry” but it actually just that the meat itself hasn’t cooked long enough to become tender. This means just because your meat hits the safe temperature, doesn’t necessarily mean it is finished cooking to become tender. Unfortunately, I can not account for every single person’s individual slow cooker and weight of meat to tell you exactly when your meat will be done. Using these tips consistently produces a delicious pork loin for most slow cookers.
  • See notes in the article of how to turn this recipe (or the leftovers) into pulled pork, and how to add extra vegetables in the crockpot when making this recipe

Nutrition

Serving: 1servings | Calories: 274kcal | Carbohydrates: 5g | Protein: 39g | Fat: 10g | Saturated Fat: 3g | Cholesterol: 107mg | Sodium: 613mg | Potassium: 696mg | Fiber: 1g | Sugar: 3g | Vitamin A: 137IU | Vitamin C: 2mg | Calcium: 19mg | Iron: 1mg
Keyword dinner, easy, meat, pork

Did You Make This?

I would love to see it! Share your thoughts with me in the comments below!

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Have a question about how to make pork loin in the crock pot recipe? Leave your questions, or just tell me how much you loved the recipe in the comments!

4.67 from 639 votes (596 ratings without comment)

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167 Comments

  1. Danielle Beaudry says:

    5 stars
    This came out so delicious! What a nice flavor the onion gave to the pork

  2. My family loved your pork loin, seconds were a given
    Thanks

  3. Paul Dulmage says:

    Kristi, please tell your fans about the joy of Reynolds Slow Cooker liners. No fuss, no muss, no cooking spray—just throw away the liner with the job’s done. Easiest cleanup in the world.

  4. You mention garlic in the directions but I don’t see it in the ingredient list. Can you pls tell me how much garlic? Is it garlic powder, garlic salt or actual garlic?

    1. Never mind. I answered my own stupid question. I need to learn to read better. I better go back to school and learn to do what I say. Read directions twice

  5. 3 stars
    While this was good, the pork loin was dry. I made gravy and that helped. I wish that I would have checked it at 4 hours but I was at church. I put it in for 6 hours . I will try again. This recipe was simple! I am always trying to put a Sunday lunch together before 9 am; so I will saving this recipe .

    1. Hey Jenn- Often if your pork comes out dry it actually needs to cook longer for the fat to fully render into the meat. I know it seems counter-intuitive, but “dry” almost always means the fat needs to cook down more in the meat to make the meat tender. If you had a pork tenderloin instead of a pork loin the meat may have been actually dry, as pork tenderloin cooks much faster then pork loin as it is a leaner cut of meat. Hope that helps for your next try. -Kristy

  6. I make this recipe with a frozen pork loin and I use a package of Lipton onion soup for the spices and it is delicious. With the left over pork I dice it up and use it for chop suey along with the left over gravy. Also delicious. Try it youโ€™ll like it.

  7. 5 stars
    I used this recipe and doubled the spices….we like it WELL seasoned…it was DELICIOUS! My pork loin was almost 5 lbs and I cooked it for 5 hours on high.

  8. Thanks for sharing your recipe. This is the 2nd time I’ve used it. You know it’s a winner when it’s the recipe you look for!

  9. 5 stars
    Made this with the gravy recipe and both were amazing! I will definitely be making both again! Thanks for sharing!

  10. 5 stars
    I made this last night and it was DELICIOUS! Even my picky eater liked it. I sent a plate to a neighbor who declared it as AWESOME! Our local supermarket had a fabulous sale on boneless pork loin so I bought a 6 lb. loin and cut it in half putting the other half in the freezer. I was trying to decide whether to cook it in the InstantPot or Slow Cooker and saw your recipe and decided to try it. I followed the basic recipe pretty closely with a couple of additions. I used some rosemary in the spice mixture. My slow cooker is the rectangular type with a metal pan that sits on a burner. I especially like that because I can brown the meat first without getting a second pan dirty. I cut 2 onions in half and put them in the bottom of the cooker and then the pork loin on top. I used 2 cups of vegetable broth. I had a half pound of baby bella mushrooms which I tossed in the cooker. I also added a handful of baby carrots and 6 or 7 peeled potatoes. I cooked it on high for one hour, 4 hours on low and then one more hour on high. It came out just perfect. You could slice it without falling apart but was so tender I could shred it for BBQ pork sandwiches the next day.
    When done I took the pork out of the cooker and put it aside to rest. I put the mushrooms and carrots on the plate with the pork. I used the potatoes to make mashed potatoes. They had a lot of depth of flavor having cooked in the broth. I only had to add some butter and half and half. I added the onions to the gravy and used my immersion blender to make it smooth. This was a meal that would be worthy of serving to any company. Thank you for posting suck a delicious recipe.

    1. Thank you for telling me about it JimmyB, it sounds delicious. I love some of the ways you made the recipe your own with the added veg. Thanks so much for sharing! -Kristy

  11. 2 stars
    Came out dry. And didnโ€™t like the seasoning either. Sorry, comes out better in the oven, crispy top and juicy inside

    1. Hi Ann- Usually when someone says their pork loin came out dry, it means it needs to cook longer. The crockpot doesn’t allow moisture to seep out of it like the oven does, it’s a closed container. Pork loin is a meat best cooked low and slow because it gives time for the fat to fully render into the meat. Typically what seems like dry is actually the fat has not rendered for long enough and the meat hasn’t broken down enough- even if the inside of the meat is registering that it is at temperature.

      Allowing the meat to cook longer can actually take it from seemingly dry (not finished cooking tough looking meat) to tender. This takes longer in a slow cooker then it does in the oven, which cooks at a lower temperature. It could also be that your slowcooker cooks on the warmer side, especially if you cooked it on high. Some of the newer machines cook at a higher temperature which can cause the contents to cook too fast. It might be worth checking your slow cooker. This article has great advice: https://www.ayearofslowcooking.com/2008/08/help-my-crock-pot-cooks-too-fast.html Hope that helps!

  12. I love your easy to follow directions. I just put my 4 pound pork loin in the crockpot, over two cans of sauerkraut. I am expecting a wonderful meal. Thank you

    1. I have not tried this recipe with loin chops. I imagine it would shorten the overall cooking time-sliced but I’m not sure how juicy it would be sliced like that. Let me know if you try it how it goes! -Kristy

  13. 5 stars
    One of the best pork recipes I have tried! I was looking for a recipe for Our traditional New Yearโ€™s Day pork and sauerkraut and wasnโ€™t sure how to best cook a pork loin. It wasnโ€™t my first choice of roast since I usually make a pork shoulder which has a higher fat content but the grocery store was sold out of the shoulder roast. I modified the recipe by adding a bag of sauerkraut over the onion slices and under the pork loin roast and reduced the chicken broth to one cup. It was delicious!!! So tender and the spices added a wonderful flavor to the pork and the sauerkraut. I will definitely make this again.

    1. Hi Cheryl,
      Yes, there is a whole section about cooking pork loin from frozen in the article. -Kristy

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