In a food processor add dates, natural peanut butter, honey and cacao powder. Blend until combined.
Add walnuts to the mixture. Pulse until combined, but leaving walnuts still in chunks.
Roll mixture into balls about the size of a ping pong ball. Place on a sheet of parchment paper, then move the whole tray into the freezer for 15 minutes before enjoying!
If your dates feel dry to the touch, soak dates in warm water for 15 minutes to soften. Then remove pits from the dates. Dates will often become less chewy over time, but by softening them in a little warm water, the energy bites will have a better consistency.