Sign up for the Protein Buff Newsletter to get awesome subscriber perks!

Peanut Butter Protein Cookies

Peanut Butter Protein Cookies

Looooove these peanut butter protein cookies. Probably my favorite recipe to date. Super moist and peanut buttery, and oh so freakin’ good! Trust me, you’ll fighting off friends and family for the last cookie :)

5.0 from 1 reviews
Recipe type: Dessert
Diet: High Protein
Prep time: 
Cook time: 
Total time: 
Serves: 16
This peanut butter protein cookies recipe is to die for! High protein & sugar free as always, they're moist and peanut buttery low carb goodness!
  • ¾ cup peanut butter (I like the crunchy kind, but whatever floats your boat)
  • ½ cup salted butter
  • ½ cup erythritol
  • 8 packets stevia powder
  • 1 egg
  • ½ tsp vanilla extract
  • ½ cup white flour
  • ½ cup unflavored whey protein isolate
  • ¼ tsp baking soda
  • ¼ tsp baking powder
  • ¼ tsp salt
  1. Preheat oven to 350 F (175 C).
  2. Cream the butter and peanut butter together.
  3. Mix in the erythritol, stevia, vanilla, and egg.
  4. In separate bowl, mix the remaining ingredients, then bit by bit, stir them into the wet mix.
  5. Form into 16 little balls, and press into cookie shape on a cookie sheet.
  6. Make a criss-cross pattern on the top of the cookies with a fork to flatten them a bit.
  7. Bake for 4-6 minutes. They will look underdone, don't worry, they'll firm up more as they cool. Don't overcook, they won't be as soft and moist.
  8. Peanut butter protein cookies a la Protein Buff, enjoy!
Serving size: 1 protein cookie Calories: 151 Fat: 11.4 g Carbohydrates: 6.3 g Sugar: 1.4 g Sodium: 149 mg Fiber: 1.4 g Protein: 6.9 g

Peanut Butter Protein Cookies Nutritional Info

Happy Protein Baking Signature


4 comments… add one
  • How much weight value is a packet of stavia?

    • The Now Foods Better Stevia Balance packets I use are 1.1 grams each. This brand of Stevia has inulin in it as well, so the sweetness may differ from other brands perhaps. At some point I plan to experiment with different forms/brands of Stevia, so stay tuned.

  • The humble peanut-butter cookie is one of life’s ultimate pleasures… A little crunch and a bit of smooshy-ness inside. So good!
    I wonder what the criss-cross pattern on top represents. I have never in my life seen a peanut butter cookie not rocking that look. Does it help with even cooking? Does it designate one type of cookie from another? Maybe it’s a regional thing, but from where? Is it an ancient message from aliens ala the Nazca Lines?
    Cookies really make you think.

    • I have often wondered this myself! I did a bit of research and found inconclusive results. Some say it is to help flatten the cookie and get an even bake, some say it is to alert people with peanut allergies that the cookie contains peanuts, and some even say that it has religious references to the cross. In any case, it’s true, peanut butter cookies do always rock the criss cross, and I won’t be the first one to mess with this long standing tradition! Thanks for the comment Shawn, interesting to ponder these little things we so seldom question.


Leave a Comment

Rate this recipe: