Homemade Peanut Butter Frosting (Creamy & Fluffy

This Homemade Peanut Butter Frosting is rich, creamy, and perfectly balanced between sweet and nutty. It’s easy to make with simple ingredients and comes together in just a few minutes. This frosting is ideal for cakes, cupcakes, brownies, cookies, or even as a filling for sandwich cookies.

Ingredients

1 cup unsalted butter, softened to room temperature
1 cup creamy peanut butter (regular, not natural)
3–4 cups powdered sugar, sifted
1 teaspoon vanilla extract
1–2 tablespoons milk or heavy cream (as needed)

Instructions

In a large mixing bowl, add the softened butter and creamy peanut butter. Using an electric mixer, beat on medium speed for about 1–2 minutes, until the mixture is smooth, light, and fluffy.
Reduce the mixer speed to low and gradually add the powdered sugar, one cup at a time. This helps prevent lumps and keeps the frosting smooth.
Add the vanilla extract and continue mixing until everything is fully incorporated, scraping down the sides of the bowl as needed.
If the frosting is too thick, add 1 tablespoon of milk or heavy cream at a time, beating well after each addition, until you reach your desired consistency.
Increase the mixer speed to medium-high and beat for an additional 30–60 seconds to make the frosting extra fluffy.
Tips for Best Results
Use room temperature butter to ensure a smooth, lump-free frosting.
Avoid natural peanut butter, as the oil separation can affect texture.
For a firmer frosting (great for piping), add more powdered sugar.
For a softer, spreadable frosting, add a little extra milk or cream.
If the frosting tastes too sweet, add a pinch of salt to balance the flavors.
Variations
Chocolate Peanut Butter Frosting: Add ¼ cup unsweetened cocoa powder.
Honey Peanut Butter Frosting: Replace 2–3 tablespoons of powdered sugar with honey.
Extra Creamy Version: Use heavy cream instead of milk for a richer taste.

How to Serve

Spread this peanut butter frosting generously over chocolate cake, vanilla cupcakes, banana bread, brownies, or sandwich it between cookies. It also pairs beautifully with chocolate desserts for a classic flavor combination.

Storage

Store leftover frosting in an airtight container in the refrigerator for up to 5 days.
Let it sit at room temperature and re-whip briefly before using again.