Sweet and delicious, this small batch blackberry jam recipe comes together with just a few ingredients and no pectin. Use this delicious jam on top of biscuits, toast or ice cream!
Ingredients
4cupsblackberriesfresh or frozen
2cupsgranulated sugar
1 ½tablespoonlemon juice
Instructions
Turn the stove to medium high heat. In a large saucepan, add the blackberries, sugar and lemon juice. Place the pan on the stove.
Cook the blackberry mixture over medium heat, stirring frequently. Allow the fruit to come to a full boil watching carefully so it doesn't over boil. See notes.
Reduce the heat slightly to allow the jam to simmer. Stir frequently as the jam thickens until it thickens to your desired consistency. You can also use the drippy spoon technique described in the notes. This should take about 12-15 minutes from the beginning of boiling through the simmering process
Remove the blackberry jam from the heat and allow to fully cool to room temperature before storing or using for a recipe. Enjoy!
Notes
Makes about 3 half pint jars or three 8 ounce glass jars, about 24 ounces total. One ounce of jam is about two tablespoons.Blackberries foam a LOT when you cook them. Watch the pot carefully as it cooks so you don't accidentally boil over the pot, and adjust the heat on the burner as necessary.
How Can I Adjust The Sugar In This Jam?
The sugar can be adjusted to your own taste in most jam recipes, and can be made with less sugar if you choose. I suggest starting with half the listed sugar and then taste and add more if necessary. The amount of sugar can adjust if you have especially ripe blackberries.Taste carefully once the jam mixture just comes to a boil. (blow on it carefully it will be hot!) You can then add the amount of sugar that works for you before the jam begins to jell.
Can I Make This Jam Sugar Free?
Blackberries have natural sugar in them so there is no way to make jam that has no sugar.You can make a no sugar added jam by using a sugar substitute, I generally recommend using Stevia or your favorite sweetener replacement to taste after the fruit has begun boiling. I would start with half of the sugar listed with a sugar replacement as sugar replacements tend to be sweeter. Then taste and add more sugar as needed.
How To Do The Drippy Spoon Test For Jam To Know When It’s Thick Enough
The drippy spoon test is one of the easiest ways I know to tell if jam is done simmering. Simply dip a spoon into the jam mixture and watch the jam drip off the side of the spoon.
Light drips– When the jam first begins to become a syrup after boiling, the mixture will drip easily off the spoon and be light in color.
Drops In Two Drips– As the jam mixture begins to thicken, you’ll notice the drips will start to come off the side of the spoon in two drips instead of one.
Sheet of Drips– Once the jam has become thick enough it will drop off the side of the spoon in more of a thicker sheet. Once this happens, the jam has reached the jelled portion where the natural fruit pectin found inside the fruit has thickened, and your jam will be thick enough to spread on toast.