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3 Ingredient Peanut Butter Fudge Recipe

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4.3 from 3 reviews

This simple and delicious 3 Ingredient Peanut Butter Fudge recipe combines creamy peanut butter, rich unsalted butter, and sweet powdered sugar to create a smooth, melt-in-your-mouth treat. Perfect for peanut butter lovers, this fudge is easy to prepare, requires no baking, and can be made ahead for any occasion.

  • Author: Chef
  • Prep Time: 15 minutes
  • Cook Time: 10 minutes
  • Total Time: 1 hour 20 minutes
  • Yield: 32 servings
  • Category: Dessert
  • Method: No-Cook
  • Cuisine: American

Ingredients

Ingredients

  • 1 cup unsalted butter
  • 18 oz smooth peanut butter
  • 1 pound powdered sugar

Instructions

  1. Prep Pan: Line an 8×8-inch cake pan with parchment paper or buttered foil, ensuring there is excess overhang on all sides to easily lift the fudge out later. Butter the pan or foil first for extra non-stick assurance.
  2. Sift Sugar: Pour the powdered sugar through a metal sieve to remove any lumps and achieve a smooth texture in the fudge.
  3. Melt Butter & Peanut Butter: Using a double boiler with gently simmering water, melt the unsalted butter while occasionally stirring. Once melted, add the smooth peanut butter and stir until the mixture is fully combined and smooth.
  4. Stir in Sugar: Gradually add the sifted powdered sugar to the melted butter and peanut butter mixture. Stir continuously until the mixture is completely lump-free and well blended, which may take a couple of minutes.
  5. Chill: Pour the fudge mixture into the prepared pan, packing it into the corners and smoothing the top evenly. Place the pan in the refrigerator and chill for 1 to 2 hours until the fudge is fully set and firm.
  6. Slice and Serve: When set, use the parchment or foil overhang to lift the fudge from the pan. Transfer it to a cutting board and slice into 32 bite-sized pieces. For clean cuts, use a sharp knife dipped in hot water and dried between each slice.

Notes

  • Using a double boiler prevents burning and ensures gentle melting of butter and peanut butter.
  • Sifting powdered sugar is important to avoid lumps in the final fudge texture.
  • Make sure to chill the fudge completely before cutting to maintain clean slices.
  • Store leftover fudge in an airtight container in the refrigerator for up to 2 weeks.
  • For variation, use crunchy peanut butter instead of smooth for added texture.