Peanut Butter Brownie Frosting (6 Ingredients)

5 from 2 votes

Peanut Butter Brownie Frosting (6 Ingredients)

Take your peanut butter and chocolate pairing to the next level with this decadent 6 ingredient peanut butter brownie frosting. In just 15 minutes, you’ll enjoy a frosting that makes even the best brownies better.

Prep Time15

Total Time15

Course: Dessert

Cuisine: American

Servings: servings (9x9 pan of brownies; 1 ¼ cups)

Calories: 164kcal

Author: Jessica Mode

Equipment

stand mixer or electric hand mixer
silicone spatula
offset spatula

Ingredients

4 tablespoons unsalted butter softened to room temperature
¼ cup creamy peanut butter
1 ¼ cups confectioners' sugar measured then sifted
2 tablespoons heavy cream
½ teaspoon vanilla extract
⅛ teaspoon fine sea salt

US Customary - Metric

Instructions

Beat butter and peanut butter in a stand mixer fitted with a paddle attachment on medium-high speed until light and fluffy, about 2 - 3 minutes. Scrape down the sides of the mixer as needed.
Add confectioners' sugar; mix on medium-low speed until combined.
Add heavy cream, vanilla extract, and fine sea salt; mix until fully combined.
Set the mixer to medium-high speed and allow the buttercream to beat for an additional 5 minutes.
Spread frosting on top of a 9 x 9 inch pan of brownies using an offset spatula.

Notes

Storage: Store frosted brownies in an airtight container in the refrigerator.

Peanut butter frosting can be stored in an airtight container in the refrigerator for up to 1 month as long as your heavy cream is fresh. Allow the frosting to come to room temperature before spreading on brownies.

In order to achieve a light and pillowy frosting, beat for a full 5 minutes after all of the ingredients have been incorporated. Don't be tempted to cut this time short.

Allow the brownies to cool before adding the frosting. If the brownies are warm, the frosting will melt off.

Nutrition