Fluffy Peanut Butter Frosting

8 servings
15 min

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This Fluffy Peanut Butter Frosting is crazy fluffy! It is not overly sweet, with little sugar. This frosting would make the perfect addition to your favorite cake.

Find this recipe and more on my blog HERE: https://sugarylogic.com/fluffy-peanut-butter-frosting/

This fluffy peanut butter frosting is one of my most favorite recipes that I have yet created. I have used it on cakes, brownies, you name it.

It is low in sugar (as far as frostings go) and the texture of the frosting is perfection. It is so good that you are going to want to eat it by the spoonful.

This recipe was first featured with my Banana Cake with Peanut Butter Frosting. While that banana cake is delicious, I absolutely fell in love with the frosting. It's light, fluffy, and not overly sweet. There is a very small amount of confectioners' sugar added in addition to honey, but peanut butter is the star. I think you will love this fluffy peanut butter frosting as much as I do!


  • Unsalted Butter - Make sure the butter is nice and softened (at room temperature) for the best incorporation. Room temperature butter results in a luscious, fluffy frosting.
  • Creamy Peanut Butter - I advise that you use creamy peanut butter to obtain the fluffy texture of the frosting. I used classic Skippy creamy peanut butter for this recipe.
  • Confectioners' Sugar (powdered sugar) - For best results, sift the sugar prior to adding it to the other ingredients when mixing.
  • Honey
  • Salt
  • Pure Vanilla Extract - When it comes to frosting, you have to use the real stuff for the best flavor.

How much frosting does this recipe make?

This is a small batch frosting recipe, perfect for covering a 9-inch round cake or an 8-inch square cake. Of course, if you need more frosting you can double or triple the recipe. This fluffy peanut butter frosting pairs with a lot of flavors, especially chocolate and banana. The consistency is crazy fluffy, and once chilled, it has an almost mousse-like texture. I can literally eat it by the spoonful!

Low-sugar frosting, is it any good?

The answer is yes. While there is still sugar in this frosting recipe, there is significantly less than a regular buttercream recipe. The sweet flavor comes from the combination of honey and confectioners' sugar. Depending on what brand of peanut butter you use, there may be some additional sugar in it as well.


This recipe could not be simpler. The key here is to make sure that your butter is soft. Softened butter is essential to the light and fluffy consistency of this frosting.

  1. In a mixing bowl of a standing mixer fitted with the paddle attachment, mix together the smooth peanut butter, softened unsalted butter, salt, honey, and pure vanilla extract. With the mixer on medium-high speed, whip the mixture until fluffy, about 3 minutes.
  2. Add the sifted confectioners' sugar and beat for an additional 2-3 minutes until fluffy, scraping as needed.

Use immediately.

Frequently Asked Questions

Can you use crunchy peanut butter to make this frosting? Ideally, you want to use smooth peanut butter to make this light and fluffy frosting. The crunchy peanut butter will work, however, the little peanut bits interfere with the consistency.

Can this Fluffy Peanut Butter Frosting be frozen? No, this peanut butter frosting should not be frozen. It will not thaw appropriately. You can store this frosting in an airtight container for up to 1 week in the refrigerator.

Do I need to sift the confectioners' sugar? While you can make this recipe without sifting the sugar, you are more likely to have clumps of sugar in your final product. For the best incorporation and frosting consistency, sift the sugar before mixing it with the other ingredients.

Other Recipes You'll Love

This fluffy peanut butter frosting is so good! If you make it, let me know what you think in the comments. You can certainly eat it by the spoonful, but it is also great on cake or brownies. Time to make a batch for yourself!

DID YOU MAKE THIS RECIPE? Please leave a star rating and review on my website!

Fluffy Peanut Butter Frosting

Recipe details

  • 8  servings
  • Prep time: 5 Minutes Cook time: 10 Minutes Total time: 15 min
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  • 1/2 cup unsalted butter softened
  • 1/2 cup smooth peanut butter
  • 3 tablespoon honey
  • 1/4 teaspoon salt
  • 1/2 teaspoon pure vanilla extract
  • 1/4 cup powdered sugar sifted


In a mixing bowl fitted with the paddle attachment, mix together the peanut butter, softened butter, salt, honey, and vanilla until light and fluffy, about 3 minutes.
Add the powdered sugar and beat for an additional 2-3 minutes until fluffy.
Use immediately.

Katelyn | Sugary Logic
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  • Bev25158704 Bev25158704 7 days ago

    Please be sure to warn people this frosting contains the peanut allergen…. An unfamiliar frosting ingredient.