This post may contain affiliate links. For more information, read my disclosure policy.

If you’re a fan of homemade frosting, this peanut butter frosting needs to be at the top of your list! It’s smooth, it’s creamy, and it just might be the best PB icing recipe ever. 

Pin it now to save for later

Pin Recipe
chocolate cake with peanut butter frosting swirled on top
Table of Contents
  1. Easy Peanut Butter Frosting Recipe
  2. Ingredients in Peanut Butter Icing
  3. How to make Peanut Butter Frosting 
  4. Peanut Butter Frosting Recipe

Easy Peanut Butter Frosting Recipe

I’m a huge frosting fan. So much so that I could literally sometimes skip on the dessert and just eat the frosting on top. Every time I make this frosting recipe, everyone always is scraping up every last bite! 

Peanut butter icing is unlike any frosting flavor you’ve ever had. When I say that this is the best peanut butter icing recipe, I’m 100% serious! It’s smooth enough to go on any dessert in a quick and easy motion, or you can literally skip that whole process and gobble this peanut butter buttercream up with a spoon. Seriously – no judgment at all – I’ve been there! 

Many people actually ask me what I think this whipped peanut butter frosting tastes best with, and anything chocolate is always a win. You can make a whoopie pie cookie or top your favorite chocolate cake it! 

The versatility of this easy peanut butter icing gives you plenty of delicious options!

Why you’ll love this recipe!

  • Once you learn how to make this frosting, you’ll be using it to top all your homemade treats and sweets! 
  • All you need are six simple ingredients for this recipe for peanut butter frosting. 
  • The rich and creamy texture is perfection! 
peanut butter frosting on a grey mixing arm

Ingredients in Peanut Butter Icing

  • Creamy peanut butter – creamy works best so that you keep a creamy and smooth texture. 
  • Unsalted butter – softened at room temperature. 
  • Powdered sugar – adds sweetness without making a gritty texture. 
  • Salt – just a pinch! 
  • Vanilla extract – pure vanilla extract works best! 
  • Heavy whipping cream – adds thickness to the frosting and richness. 

How to make Peanut Butter Frosting 

  • Beat: Beat peanut butter and butter in a large bowl with a hand mixer until creamy (or in the bowl of a stand mixer fitted with the paddle attachment).
  • Mix: Mix in 1 cup of powdered sugar at a time, slowly, until the mixture is crumbly. Add salt and vanilla and mix, then add 1 tablespoon of heavy whipping cream.
  • Get the perfect texture: Beat frosting until smooth, adding more heavy whipping cream until you reach the desired consistency (I always add 6 tablespoons).
  • Pipe: Pipe or frost as desired.

Storing and Freezing Instructions

Once you make this simple frosting recipe, store it in a container and keep it in the fridge. For best results, use it within 2 days. You can freeze peanut butter frosting for up to 6 months. 

peanut butter frosting swirled in clear jar

FAQs

Why is my peanut butter frosting grainy? 

If you didn’t mix the frosting all the way, you might notice a grainy texture. Add some extra whipping cream if needed and mix until it’s not grainy any longer. 
You also will want to use a stand mixer when making this frosting. This really helps with getting it mixed all the way and can totally help with making a smooth and creamy texture. 

Why did my peanut butter frosting separate? 

The biggest reason that the frosting separates is that people use natural peanut butter. For frosting, you can’t use natural peanut butter. 

How do you thicken peanut butter buttercream? 

The easiest way to thicken frosting is to add more powdered sugar. You can also add more peanut butter to help with the texture as well. 

How can I make my frosting taste better? 

Frosting is actually very forgiving. Take a bite and see what you think can make it taste better. Add more sugar, change up the type of peanut butter, or even melt and mix in some chocolate chips. There are always ways to enhance flavors! 

Ways to use this easy frosting recipe :

Have You Made This Recipe?

Leave a rating by clicking the stars below!

peanut butter frosting recipe in jar

Peanut Butter Frosting

4.60 from 5 votes
This easy peanut butter buttercream recipe is a from scratch buttercream full of peanut butter! It's creamy and the perfect frosting for cakes, cupcakes, or brownies!
Prep Time 10 minutes
Total Time 10 minutes
Yield 24 servings
Serving Size 1 serving

Ingredients
 

  • 1 cup (268g) creamy peanut butter
  • ½ cup (113g) unsalted butter softened
  • 4 cups (452g) powdered sugar
  • ¼ teaspoon salt
  • 1 teaspoon vanilla extract
  • 6 tablespoons (90ml) heavy whipping cream

Instructions

  • Beat peanut butter and butter in a large bowl with a hand mixer until creamy (or in the bowl of a stand mixer fitted with the paddle attachment).
  • Mix in 1 cup of powdered sugar at a time, slowly, until mixture is crumbly. Add salt and vanilla and mix, then add 1 tablespoon of heavy whipping cream.
  • Beat frosting until smooth, adding more heavy whipping cream until you reach the desired consistency (I always add 6 tablespoons).
  • Pipe or frost as desired.

Recipe Video

Recipe Nutrition

Serving: 1serving | Calories: 188kcal | Carbohydrates: 22g | Protein: 2g | Fat: 10g | Saturated Fat: 4g | Cholesterol: 15mg | Sodium: 75mg | Potassium: 72mg | Sugar: 20g | Vitamin A: 175IU | Calcium: 8mg | Iron: 0.2mg
Nutritional information not guaranteed to be accurate
Course Dessert
Cuisine American
Author Dorothy Kern
Keyword frosting, peanut butter
chocolate cake with peanut butter frosting swirled on top with words on the image

Last Updated on August 15, 2022

Dorothy Kern

Welcome to Crazy for Crust, where I share recipes that are sometimes crazy, often with a crust, and always served with a slice of life.

Learn to Bake in 4 Days!
Get my tips, tricks and recipes to take your baking to the next level for FREE!

Leave a Comment

Your email address will not be published.

Recipe Rating




11 Comments

  1. Made this frosting and it is excellent. I added a little more whipping cream to make it fluffier like the recipe said. Everyone loved it.
    Will definitely make again

  2. Love the flavor, but find that the butter and peanut butter separate and have an oily sheen.  We put it in the fridge to try to harden it up.  Any other suggestions.  We live in Hawaii, so maybe the humidity is just too much. 

  3. Great peanut butter frosting! Light taste- easily doubled recipe- my question before I do it- do you think it could be tinted with a pink colouring? The momma requested pink and peanut butter but I don’t want the frosting to turn a weird colour! Thanks in advance! 

  4. Looks good. To be vegan, the heavy cream would have to be omitted as vegan don’t use animal by products. 

  5. Great frosting Dorthy.  I make a Dolce De Leche one similar with less heavy cream ( only 1 or 2 tbs. ) and instead of peanut butter add the Mrs Smith caramel sauce , it’s extra thick and great flavor .  Then favorite use is to pipe onto brownie cup cakes.  But need to hide it when done frosting brownie cupcakes or it disappears too.