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old fashioned peanut butter fudge stacked high

Old Fashioned Peanut Butter Fudge

This old fashioned peanut butter fudge recipe is truly decadent. This is the best recipe if you're short for time in the kitchen and still want a delicious dessert with a rich and creamy peanut butter flavor.
Prep Time: 10 minutes
Cooling Time 2 hours
Total Time: 2 hours 10 minutes
Servings: 16 squares


  • 8-inch square pan


  • 1 cup unsalted butter
  • 1 cup smooth peanut butter
  • cup confectioners' sugar sifted
  • 1 teaspoon vanilla extract


  • Line an 8-inch baking pan with parchment paper, leaving an overhang on the edges for easy removal later. Spray the pan with baking spray and set it aside.
  • Mix together the butter and peanut butter in a medium microwave-safe bowl. Cover with plastic wrap and poke a few holes for the steam to vent. Microwave on high for 2 minutes. Remove bowl from microwave and stir. Return and microwave for 2 more minutes. 
  • Using a wooden spoon or large rubber spatula, mix in the vanilla and then add the sifted confectioners’ sugar. The mixture will become crumbly and hard and lose its sheen. 
  • Press the fudge into your prepared 8-inch pan. Smooth the top with a spatula or the back of a spoon. Cover tightly with aluminum foil and refrigerate until cool—about 2 hours.
  • Once cooled, use a warm, sharp knife to cut the fudge into squares. Wipe down the knife if the fudge accumulates while you are cutting.

Heather's Helpful Hints

  • Use caution when handling the hot bowl of peanut butter and butter. Steam will escape when you remove the plastic wrap and the bowl will be incredibly hot. 
  • Since this recipe is so simple, make sure you are using quality ingredients. Peanut butter is the star of this recipe, so make sure you chose a brand that you really like. You might even want to opt for the "make it yourself" peanut butter you can get at stores like Whole Foods. 


Serving: 1square | Calories: 307kcal | Carbohydrates: 31g | Protein: 4g | Fat: 20g | Saturated Fat: 9g | Trans Fat: 1g | Cholesterol: 31mg | Sodium: 76mg | Potassium: 109mg | Fiber: 1g | Sugar: 29g | Vitamin A: 355IU | Calcium: 11mg | Iron: 1mg
This recipe was found on My Sweet Precision. Thank you for visiting!