4-Ingredient Healthy Peanut Butter Protein Fudge

Oh, boy, do I have a special treat for you! Healthy peanut butter fudge? Yep, you read that correctly! I’d even consider it a keto peanut butter fudge since it’s low in carbs, but high in protein and fat. But, of course, you don’t need to follow a specific diet in order to enjoy this super simple 4-ingredient protein fudge. I mean, you might already have all of the ingredients in your house. If so, I hope you try this recipe for seriously delicious protein fudge bars. If you’re a peanut butter addict (like I am), you will absolutely love them!

I always have a stockpile of Teddie Peanut Butter in the house, and I love whipping up macro friendly-desserts, especially ones that you can prep ahead and have on-hand for easy snacking. I was pleasantly surprised when this recipe came together so quickly and soooo easily.

I’m alllll about keeping things simple, so I always try to use as few ingredients as possible in my recipes. These ingredients are always available in my pantry, so this healthy peanut butter protein fudge came together in no time!

I’ve made this recipe using both collagen and OWYN vanilla protein powder, and both versions turned out great. Try both options (just about any protein powder you like will work) and let me know which one you like better! 🙂

Pro tip: Store these bites of fudge in the refrigerator or freezer for a quick treat when you want a little something sweet!

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Healthy Peanut Butter Protein Fudge

  • Author: Tina


A super simple healthy peanut butter protein fudge made with just 4 ingredients. Make a batch during your meal prep day to have on-hand for a delicious bite-size treat!



1 cup natural creamy peanut butter 
50g protein powder of choice or collagen
4 tbsp coconut oil, melted
1/4 cup cocoa nibs or mini chocolate chips


Combine ingredients until smooth. Line a baking dish with parchment paper. Pour in batter and smooth out with a spatula. Refrigerate for a few hours until firm. Cut into 24 pieces. Store in fridge or freezer. Enjoy!


  • Serving Size: 1
  • Calories: 100
  • Fat: 8
  • Carbohydrates: 2.5
  • Protein: 4.5


  1. This recipes looks great! As someone just recently getting into macros. I think it might be helpful to give the traditional calories count of the recipe along with the macro percentages.

  2. this looks tasty!

    what size baking dish are you using? (looks like you are using square 8×8, however you say to cut into 24 portions rather than the 16 you show on here, so wasn’t sure how to handle) – and whether the 24 pieces would be TINY if you go with 24 instead of 16

  3. Hi! Long time reader from Boston – always follow your recs when we head down to the south shore. Any recommendation for a place to sit outside and eat in Quincy this weekend? casual is great – I’m 36 weeks pregnant and only wear leggings these days 🙂 thanks!

        1. Good question! Alba has a fun roof deck. Bay Pointe is on the water and you could always hit up Marina Bay. It’s nice to sit outside, but the food is generally meh. If you end up more south, Alma Nove, Hingham Beer Works, and Trident are on the water and have good food. I hope this helps! Enjoy your time here!

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