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Easy 3-Ingredient Peanut Butter Fudge Recipe

Easy 3-Ingredient Peanut Butter Fudge

This creamy peanut butter fudge comes together quickly with three simple ingredients and no candy thermometer. It sets into rich, sliceable squares after chilling in the refrigerator.
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Prep Time 10 minutes
Cook Time 5 minutes
Total Time 1 minute
Servings: 24 servings
Ingredients Method Notes

Ingredients
  

Main Ingredients
  • 1 cup (226 g) Unsalted butter
  • 1 cup (about 255–260 g) Creamy peanut butter
  • 1 pound (454 g; approximately 3 3/4 cups) Confectioners’ sugar, sifted

Method
 

Step-by-Step
  1. Line an 8-inch square baking pan with parchment paper or foil, leaving enough overhang on two sides to lift out the chilled fudge.
  2. Melt the butter and creamy peanut butter together in a saucepan over low heat, stirring until completely smooth. Do not boil the mixture.
  3. Remove the saucepan from the heat and gradually stir in the sifted confectioners’ sugar until the mixture is smooth and no dry pockets remain.
  4. Immediately spread the fudge mixture evenly into the prepared pan, smoothing the surface with a spatula.
  5. Refrigerate for at least 1 hour, or until firm. Lift the fudge from the pan using the parchment or foil, then cut it into small squares with a sharp knife.

Notes

Use creamy conventional peanut butter for the most reliable texture. If using natural peanut butter, stir it thoroughly first because separated oil can make the fudge soft or greasy. Butter is preferred over margarine for flavor and setting quality. The strict three-ingredient recipe does not include vanilla.