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Homemade Peanut Butter Frosting

Cozy, creamy peanut butter frosting that's perfect for cakes, cupcakes, and brownies. Quick and easy to make, this frosting is sure to be a hit!
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Prep Time 10 minutes
Total Time 10 minutes
Servings: 12 servings
Course: Dessert, Frosting
Cuisine: American
Calories: 240
Ingredients Method Notes

Ingredients
  

Base Ingredients
  • 1 cup unsalted butter, room temperature Helps control salt.
  • 1 cup creamy peanut butter Use smooth for silky texture.
Sweetening Ingredients
  • 3–4 cups powdered sugar Start with 3 cups; add for stiffness.
  • 1 tsp vanilla extract Adds warmth and rounds flavors.
Adjustments
  • 1–2 tbsp milk or heavy cream (as needed) Heavy cream gives extra richness.

Method
 

Preparation
  1. Allow the butter to sit until soft but not greasy; it should give slightly when pressed.
  2. Put butter and peanut butter in a mixing bowl and beat on medium for about 1 minute, until light and fluffy with small air bubbles.
  3. Reduce speed to low and add 3 cups powdered sugar and the vanilla; beat until incorporated and the mix looks smooth.
  4. If it feels loose, add another cup of powdered sugar a little at a time until it holds shape.
  5. If the frosting becomes too thick, add 1 tablespoon of milk or heavy cream, then beat again to aim for a pipeable, ribbon-like fall.
  6. Scrape the bowl down once or twice to keep everything even.
Serving
  1. Spread or pipe onto cooled cakes, cupcakes, brownies, or cookies; the frosting should hold soft peaks when done.
  2. Serve at room temperature so it’s creamy and easy to bite.

Notes

Use a paddle attachment and room-temperature ingredients to blend faster. If it tastes overly sweet, add a pinch of salt and a splash of milk. Simple variations include stirring in 1/4 tsp cinnamon or 2 tbsp melted chocolate for a flavored twist.