This peanut butter frosting recipe is light and creamy, and it has just the right amount of sweetness. This recipe is the perfect frosting for brownies and chocolate cake!
It costs $4.67 to make twenty-four servings of this Peanut Butter Frosting. That is just $0.19 per serving.
I love the peanut butter and chocolate combination, especially for brownies or deep, rich chocolate cake. Unfortunately, many recipes I’ve tried for peanut butter frosting were too heavy and overly sweet.
Consequently, I decided to develop my recipe by using my favorite cream cheese frosting as a guide. I took out a lot of the heaviness from traditional buttercream recipes by using a little heavy whipping cream rather than all butter. As a result, this peanut butter frosting was light, fluffy, and ah-amazingly delicious!
Peanut Butter Frosting for Brownies
My brother Jeff has an obsession with peanut butter. He puts it in his protein shakes, on his ice cream, puts a scoop on his cookies, and who knows what else he adds it to!
In addition to loving peanut butter, he also loves brownies. So because of his two loves, I knew I needed to make a Peanut butter frosting for brownies to feed his obsession.
This peanut butter buttercream is light, fluffy, and oh so delicious. Add the peanut butter frosting to my Triple Chocolate One Bowl Brownies, and you will not be sorry!
After combining these two recipes, I now understand his love of peanut butter and brownies and am now a little obsessed with myself.
Ingredients and Estimated Cost
Per Serving Cost: $0.19
Recipe Cost: $4.67
- 1 cup salted butter – $1.44
- 1 ¼ cups creamy peanut butter – $1.77
- 3 cups powdered sugar – $0.87
- ½ cup heavy whipping cream – $0.59
NOTE: The recipe prices are calculated by using grocery store websites. The actual cost of the recipe will vary depending on what ingredients you already have.
How To Make Peanut Butter Frosting?
- First, using a stand mixer, mix together the butter and peanut butter on medium-high speed for 2-3 minutes.
- Next, scrape down the sides of the bowl and then add the powdered sugar. Mix until well combined.
- Finally, add the heavy cream and beat together until smooth on medium-low. Then turn the mixer to high and beat for four minutes until the frosting is light and fluffy.
***For complete recipe instructions, see the recipe card below.
SERVE: As with most recipes with dairy products, you shouldn’t leave this frosting out for longer than 2 hours.
STORE: Leftover frosting can be eaten with a spoon kept in an air-tight container in the refrigerator for up to 3 days. Or you can freeze it for up to 1 month. Just leave the frosting at room temperature until softened. Then give it a whirl in the mixer to fluff it back up.
FREEZE: You can freeze this frosting for up to 1 month. Just leave the frosting at room temperature until softened. Then give it a whirl in the mixer to fluff it back up.
- stand mixer OR hand mixer
- rubber scraper OR self-scraping paddle attachment(this might be my favorite kitchen gadget ever!)
- piping bag
- my favorite large icing tips
It is possible for the frosting to become grainy from unsifted powdered sugar, so you may want to sift it first before mixing it into the other ingredients.
I recommend only using real peanut butter for this recipe. Natural peanut butter tends to separate and cause your frosting to separate.
Watch the Peanut Butter Buttercream frosting as you are mixing it. You want it to become light and fluffy, but if you overmix it, this can cause air bubbles, destroying the texture of the frosting.
The temperature of your kitchen can also affect the buttercream frosting. If your kitchen is too warm, your frosting may not form correctly into the light and fluffy texture we are going for. Simply lowering the temperature in your kitchen can fix this issue.
More Frosting Love
The frosting is just as important (if not more!) than the cake, brownies, or cupcakes. The flavor of frosting you go with can change the entire taste of the dessert.
If you are looking for something light and fresh-tasting, try this Fresh Strawberry Buttercream Frosting. If you want a rich-tasting frosting, go with this Homemade Chocolate Frosting paired with my Triple Chocolate One Bowl Brownies.
Oh, my chocolate! Can’t decide between chocolate or vanilla frosting? This Chocolate Vanilla Swirl Frosting has you covered. The possibilities are endless of what to pair these delicious frostings with.
- Puff Pastry Chocolate Croissants
- Edible Chocolate Chip Cookie Dough
- Peanut Butter Cookie Bars
- No-Bake Chocolate Peanut Butter Bars
- Frozen Reese’s Peanut Butter Pie
- Loaded Peanut Butter Cookies
- Deep Dish Peanut Butter Cookie Pie with Chocolate Chips
- Chocolate Peanut Butter Cupcakes
- Peanut Butter Swirl Brownies
- Chocolate Peanut Butter Macarons
Peanut Butter Frosting
- 1 cup salted butter at room temperature
- 1 ¼ cup creamy peanut butter
- 3 cups powdered sugar
- ½ cup heavy whipping cream
- In the bowl of your stand mixer fitted with a paddle attachment, cream butter, and peanut butter together on medium-high speed for 2-3 minutes, or until light, creamy, and lightened a few shades.
- Scrape down sides of the bowl, add the powdered sugar, and mix until combined.
- Add heavy cream and beat on medium-low until combined and smooth. Turn mixer to high and beat for 4 minutes, or until frosting is light and fluffy.
- This recipe makes enough peanut butter buttercream for an 8-inch layer cake or 24 cupcakes.
This post first appeared on Food Folks and Fun on September 19, 2016. I have since updated the pictures and answered some frequently asked questions.