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3-Ingredient Peanut Butter Fudge

If you're searching for a quick dessert that doesn't sacrifice flavor, this 3-ingredient peanut butter fudge is your answer. With just creamy peanut butter, unsalted butter, and powdered sugar (plus a dash of vanilla for extra depth), this fudge delivers a rich, melt-in-your-mouth experience that stores beautifully in the fridge.
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Prep Time 10 minutes
Cook Time 2 hours
Total Time 2 hours 10 minutes
Servings: 4 servings
Course: Dessert
Cuisine: American
Ingredients Equipment Method Notes

Ingredients
  

Ingredients
  • 1 cup creamy peanut butter 240g; choose a good-quality brand
  • 1 cup unsalted butter 2 sticks or 226g
  • 4 cups powdered sugar 480g
  • 1 teaspoon vanilla extract optional, but recommended

Equipment

  • Microwave-safe bowl
  • 8x8-inch dish
  • Parchment paper or light greasing method
  • Spatula
  • Cutting board

Method
 

  1. In a microwave-safe bowl, combine 1 cup of creamy peanut butter and 1 cup of unsalted butter. Microwave on high for about 2 minutes, stir well, then microwave for an additional 1-2 minutes until the mixture is completely melted and smooth.
  2. Stir in 1 teaspoon of vanilla extract. This optional ingredient really adds depth to the flavor.
  3. Gradually add 4 cups of powdered sugar to the melted mixture while stirring continuously. The texture will thicken and become stiffer as you mix.
  4. Transfer the thick fudge mixture into an 8x8-inch dish lined with parchment paper or lightly greased. Press down firmly with the back of a spatula to form an even layer.
  5. Refrigerate the fudge for at least 2 hours (overnight is ideal) until it has completely set. Once firm, lift it out using the parchment paper edges and cut into bite-sized squares.
  6. Serve and enjoy this rich, creamy treat on its own or paired with vanilla ice cream, cold milk, or even fresh berries.

Notes

This peanut butter fudge is a quick and simple dessert that comes together in minutes with minimal ingredients. You can customize the recipe by swapping creamy peanut butter for crunchy or even trying almond butter for a twist. The optional vanilla extract enriches the flavor, making the fudge even more irresistible. Store any leftovers in an airtight container in the refrigerator for up to two weeks, though it usually doesn’t last that long.