Fluffy Peanut Butter Frosting


This peanut butter frosting is light and fluffy — the perfect topping for brownies or chocolate cake. Sweet but not too sweet; peanut buttery but not greasy. This creamy frosting tastes wonderful and won't overpower your brownies!

Prep Time:
10 mins
Total Time:
10 mins
2 cups

This smooth and creamy peanut butter frosting is the sweetest way to top your favorite cakes, cupcakes, and brownies.

Peanut Butter Frosting Ingredients

You'll need just four easy-to-find ingredients to make this fluffy peanut butter frosting recipe:

· Peanut butter: Of course, you'll need peanut butter. Make sure you use a creamy variety.
· Butter: A stick of butter adds richness and flavor.
· Confectioners' sugar: Confectioners' (a.k.a. powdered) sugar is perfect for frosting, as it blends seamlessly into the other ingredients.
· Milk: Three tablespoons of milk helps create the perfect texture.

How to Make Peanut Butter Frosting

Making this peanut butter frosting is as easy as 1-2-3. You'll find the full, step-by-step recipe below — but here's a brief overview of what you can expect:

1. Beat the butter and peanut butter, then blend in the sugar.
2. Add the milk a tablespoon a time.
3. Beat until light and fluffy.

How to Use Peanut Butter Frosting

When it comes to this peanut butter frosting, you've got a lot of options. Use it to frost chocolate or peanut butter cake or cupcakes, spread it on brownies, or eat it by the spoonful. Need some delicious inspiration? Try one of these sweet recipes:

· One-Bowl Chocolate Cake
· Best Brownies
· Peanut Butter Cupcakes

Allrecipes Community Tips and Praise

"This recipe produced a delicious fluffy frosting with just the right amount of sweetness," raves 1SASSYCOOK. "I used it to top an 8x8 single-layer dark chocolate cake. I only had cream and not milk, and it worked for me!"

"I put a dab of chocolate fudge in the middle of my cupcakes," says Fosterkr. "Topped the whole thing off with some chopped up Resee's cups. PERFECT! I got so many compliments at my daughter's birthday."

"It turned a boring devil's food box mix into a winner of a cake," according to Sierra. "I did add a little salt to highlight the peanut butter...and a little bourbon."

Editorial contributions by Corey Williams


  • 1 cup creamy peanut butter

  • ½ cup butter, softened

  • 2 cups confectioners' sugar

  • 3 tablespoons milk, or as needed


  1. Beat peanut butter and butter in a medium bowl until creamy and combined.

  2. Gradually blend in sugar; when the mixture thickens, begin incorporating milk, 1 tablespoon at a time, until frosting is thick and spreadable.

  3. Beat on high speed until light and fluffy, about 3 minutes.

Nutrition Facts (per serving)

208 Calories
14g Fat
19g Carbs
4g Protein
Nutrition Facts
Servings Per Recipe 16
Calories 208
% Daily Value *
Total Fat 14g 18%
Saturated Fat 5g 27%
Cholesterol 16mg 5%
Sodium 116mg 5%
Total Carbohydrate 19g 7%
Dietary Fiber 1g 4%
Total Sugars 17g
Protein 4g
Calcium 12mg 1%
Iron 0mg 2%
Potassium 111mg 2%

* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

** Nutrient information is not available for all ingredients. Amount is based on available nutrient data.

(-) Information is not currently available for this nutrient. If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption.

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