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Keto Peanut Butter Fudge

Keto Peanut Butter Fudge

A 3 ingredient keto peanut butter fudge is perfect for peanut butter lovers on a low carb diet. Living a healthy lifestyle while enjoying sugar free desserts is awesome!
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Prep Time 10 mins
Refrigeration Time 3 hrs
Total Time 3 hrs 10 mins
Course Dessert
Cuisine American
Servings 16 pieces
Calories 144.8 kcal


  • 8 tablespoon salted butter
  • 1 cup natural sugar free peanut butter
  • 1/2 cup powdered sweetener
  • 1 teaspoon vanilla extract


  • Line a loaf pan with parchement paper
  • Next, in a pot on medium heat add butter. Allow to melt.
  • Then add in peanut butter. Continue to mix until smooth
  • Add in powdered sweetener and vanilla extract. Continue mixing until smooth.
  • Now, pour into loaf pan and place in refriderator until set and hardened. It took mine about 2.5-3 hours to fully set.


Helpful Recipe Tips

  • Line loaf pan with parchment paper, this is not a recipe that is an easy release. You'll have to line the pan to be able to remove it.
  • Natural peanut butter, the less oily the peanut butter the better the recipe will set.
  • Powdered sweetener, not using powdered sweetener with result in a crunchy fudge. Using erythritol which I do recommend may result in this anyway even if the sweetener is powdered. I experienced this from my no bake cookies. I made a batch with allulose and Lakanto. The Lakanto which has erythritol was crunchy. Yet, the batch with allulose was smooth.


Nutrition Facts
Keto Peanut Butter Fudge
Amount Per Serving (1 piece)
Calories 144.8 Calories from Fat 123
% Daily Value*
Fat 13.7g21%
Saturated Fat 4.9g31%
Trans Fat 0.2g
Cholesterol 15.3mg5%
Sodium 46.6mg2%
Carbohydrates 3.4g1%
Fiber 1.3g5%
Sugar 0.8g1%
Protein 4g8%
* Percent Daily Values are based on a 2000 calorie diet.
Keyword Keto Peanut Butter Fudge
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