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peanut butter protein bars in a stack

No Bake Chocolate Peanut Butter Protein Bars

No bake chocolate peanut butter protein bars that taste just like a peanut butter cup. This low carb, protein bar recipe will be your new favorite snack to keep in your fridge and enjoy all week long.
Course Dairy Free, Dessert, Gluten Free, Grain Free, Protein Bar, Snack, Vegan
Keyword peanut butter protein bars, protein bar recipe
Prep Time 10 minutes
Cook Time 30 minutes
Total Time 40 minutes
Servings 10 bars
Calories 210 kcal
Author Monique of AmbitiousKitchen.com


  • ¾ cup natural creamy peanut butter (just peanuts + salt)
  • ¼ cup honey (or coconut palm syrup, if vegan)
  • 1 tablespoon melted coconut oil
  • 1 teaspoon vanilla
  • 1/3 cup ground flaxseed meal
  • 1/2 cup of your favorite vanilla or plain protein powder*
  • 2.5 ounces your favorite 85% dark chocolate bar
  • Coarse sea salt for sprinkling on top


  1. In a medium bowl mix together peanut butter, honey, coconut oil, vanilla together until smooth. Add in ground flaxseed meal and protein powder of choice. Use a spoon to mix together until you can’t anymore, then use clean hands to help work together. The batter should be similar to cookie dough.
  2. Press into an 8x4 inch pan lined with parchment paper.
  3. Make the chocolate layer by adding 2.5 ounces of dark chocolate to a small saucepan and melting until completely smooth. Pour the melted chocolate over the peanut butter layer and tilt the pan so that the chocolate covers the peanut butter layer entirely.

  4. Place in the fridge for 30 minutes-1 hour before slicing into 10 bars or squares (either works but I love squares the most). Store covered in the fridge until ready to eat. Bars will keep for up to two weeks.

Recipe Notes

*Note: if the batter feels too dry, add ½ - 1 tablespoon of melted virgin coconut oil

For the protein powder: you can use plant based or a whey protein. My personal favorite is Vital Proteins collagen peptides (which is dairy free) but I also love aloha vanilla plant based protein powder for this recipe. Those are the two I highly recommend for flavor and consistency in this recipe.

Nutrition Facts
No Bake Chocolate Peanut Butter Protein Bars
Amount Per Serving (1 protein bar)
Calories 210 Calories from Fat 124
% Daily Value*
Fat 13.8g21%
Saturated Fat 3.4g21%
Carbohydrates 13.4g4%
Fiber 2.8g12%
Sugar 8g9%
Protein 8.6g17%
* Percent Daily Values are based on a 2000 calorie diet.