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a stack of keto fudge squares

Keto Peanut Butter Fudge

Katrin Nürnberger from sugarfreelondoner.com
Peanut butter lovers are in for a treat with this suuuper creamy keto fudge! It's the perfect low carb snack to have in the house for those moments when you're craving a sweet little something. Easy and quick to make and crazy delicious.
Course Dessert
Cuisine British
Prep Time 5 minutes
Freezer 40 minutes
Total Time 45 minutes
Servings 16
Calories 139kcal



  • Melt the butter and stir all ingredients together with a fork.
  • Line a 5x7 inch tray with parchment and pour in the mix.
  • Freeze 40 minutes until set.
  • Cut into 1.5 inch squares and enjoy! Store in the freezer.


Makes 16 fudge squares weighing circa 20g each.
Net carbs: 0.6g net carbs per square (1.5 inch x 1.5 inch). 
Tip: My tray was actually larger than 5x7 inch. I simply used a scrunched up piece of aluminium foil and used it as a barrier underneath the parchment paper. This way, I managed to only use ⅔ of my tray without the fudge spreading.
This fudge is ready to eat straight from the  freezer. If you wish, let it sit on the counter for 5 minutes to get it to soften more. 


Serving: 20g | Calories: 139kcal | Total Carbohydrates: 1.9g | Protein: 6.9g | Fat: 11.3g | Saturated Fat: 3.7g | Fiber: 1.4g | Sugar: 1g