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Peanut Butter Fudge Frosting
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Peanut Butter Fudge Frosting

A decadent and creamy peanut butter fudge frosting perfect for cakes, cupcakes, or brownies. This frosting combines the nutty richness of peanut butter with the smooth, fudge-like texture of chocolate, creating a luxurious topping that’s both easy to make and irresistibly delicious.
Course Dessert, Frosting
Cuisine American
Keyword Gluten-Free, Sweet, Sweet Treat
Prep Time 10 minutes
Cook Time 5 minutes
Resting Time: 15 minutes
Total Time 30 minutes
Servings 12
Calories 240kcal
Cost $8-$10

Equipment

  • Medium saucepan
  • Whisk or silicone spatula
  • Hand mixer or stand mixer
  • Medium mixing bowl
  • Measuring cups and spoons

Ingredients

  • 1/2 cup (1 stick) unsalted butter softened (for creaminess and flavor)
  • 1/2 cup creamy peanut butter (preferably natural or regular; avoid the oily, stirred variety)
  • 1/4 cup cocoa powder (unsweetened, for a rich fudge taste)
  • 3 1/2 cups powdered sugar sifted (for a silky texture)
  • 1/3 cup whole milk (adjust for desired consistency)
  • 1 tsp pure vanilla extract (for depth of flavor)
  • 1/4 tsp salt (balances the sweetness)

Instructions

  • Prepare the Base
    In a medium saucepan over medium heat, melt the butter and peanut butter together, stirring frequently with a whisk or silicone spatula to ensure smoothness. Once fully combined, sift in the cocoa powder and stir until incorporated.
  • Combine Wet and Dry Ingredients
    Remove the saucepan from heat and slowly whisk in the milk and vanilla extract. Ensure the mixture is smooth and glossy.
  • Add the Sweetness
    Gradually add the powdered sugar, one cup at a time, whisking or using a hand mixer to blend until smooth. Sprinkle in the salt to balance flavors.
  • Adjust the Consistency
    If the frosting is too thick, add an additional tablespoon of milk at a time until it reaches your desired consistency for spreading or piping.
  • Cool and Rest
    Allow the frosting to cool slightly for about 10–15 minutes. This helps the texture set for a smooth application.
  • Frost Your Dessert
    Spread the frosting evenly over your cake, cupcakes, or brownies using an offset spatula for a polished finish. For piping, transfer to a pastry bag with your favorite tip.

Notes

 

  • Substitutions:

    • Substitute almond butter or sunflower seed butter for a nut-free version.
    • Dairy-free? Use a plant-based butter and milk alternative, such as almond or oat milk.

  • Tips for Success:

    • Always sift powdered sugar to avoid lumps in the frosting.
    • For a thicker frosting suitable for piping, reduce the milk slightly.

  • Storage:

    • Store leftovers in an airtight container in the refrigerator for up to one week. Bring to room temperature and stir before reusing.

Pro Tip

For a swirl of flavor and texture, fold in 1/4 cup of mini chocolate chips or chopped roasted peanuts just before spreading.
Enjoy this rich and velvety Peanut Butter Fudge Frosting on your favorite desserts!