01 -
Place unsalted butter and creamy peanut butter in a mixing bowl. Using an electric mixer on medium speed, beat for 1 minute until the mixture is light and fluffy.
02 -
Incorporate powdered sugar and vanilla extract into the bowl. Continue beating on low speed until fully mixed, scraping down the sides as necessary.
03 -
If a softer texture is desired, add milk or heavy cream one tablespoon at a time, beating after each addition, until the frosting reaches the preferred consistency.
04 -
Apply the frosting to cakes, cupcakes, brownies, or cookies using a spatula or piping bag. Serve immediately.