Whip up creamy, delicious Peanut Butter Frosting with just 4 simple ingredients. Perfect for cakes, cupcakes, and cookies for a quick, sweet treat.
This Peanut Butter Frosting is rich, creamy, and incredibly easy to make with just 4 simple ingredients. Perfect for spreading on cakes, cupcakes, or cookies, it delivers that classic peanut butter flavor in a smooth, fluffy texture.
Whether you’re making a quick treat or dressing up a dessert for a special occasion, this frosting is a delicious and fuss-free option for an easy homemade frosting recipe.
You can make this decadent homemade frosting in minutes. It is better than anything store bought. It is spreadable, flavorful and easy to make. The best frosting to top your cupcakes, brownies and more. It has the perfect amount of sweetness and tastes great.
Table of contents
Why We Love This
- Easy & Quick: Made with just 4 simple ingredients in minutes.
- Rich & Creamy: Smooth texture with classic peanut butter flavor.
- Versatile: Perfect for cakes, cupcakes, cookies, and more.
- No-Fuss: Simple recipe with minimal steps and ingredients.
- Crowd-Pleaser: Sweet, fluffy, and indulgent. Everyone will love it.
Ingredients
- Unsalted Butter, softened – adds richness and helps create a smooth, creamy frosting
- Peanut Butter – provides classic peanut butter flavor and a slightly nutty sweetness
- Milk – helps achieve the perfect spreadable consistency
- Confectioners’ Sugar – sweetens and thickens the frosting for a fluffy texture
The complete ingredient list can be found at the bottom of the page.
How To Make Peanut Butter Frosting
Step 1 – In a medium mixing bowl, cream together butter and peanut butter until smooth and fluffy. You can also mix in vanilla. Milk and vanilla is amazing combination. You can use a stand mixer or hand mixer.
Step 2. Gradually add powdered sugar, alternating with milk, beating after each additional until desired consistency.
Step 3 – Combine until mixed together. This frosting will be light and fluffy and used on many different cakes.
Step 4. Frost cupcakes and garnish with candy or sprinkles if desired. We recommend putting the frosting in a piping bag to easily decorate cakes.
How to Use Peanut Butter Frosting
This easy peanut butter frosting that can be used on many different bake goods. These are our favorite recipes.
- Easy Homemade Vanilla Cupcakes – You can use any peanut butter frosting and add extras like sprinkles. There are so many fun ideas for simple ingredients vanilla cupcakes. It would even be amazing on chocolate cupcakes.
- Easy Chocolate Bundt Cake – This chocolate cake is amazing and perfect to top with the frosting.
- Mini Brownie Bites – We love making bite size brownies and adding this peanut butter frosting makes them even better.
- Sheet Cake – This peanut butter frosting is amazing on a sheet cake.
- Triple Chocolate Cookies Recipe – Make cookie sandwiches with this fluffy peanut butter frosting recipe.
Pro Tips
- Peanut Butter: Use regular creamy peanut butter for the best texture and flavor. I prefer Jif or Skippy. Natural, organic, or crunchy peanut butter can affect consistency.
- Piping Bag: Use a piping bag to frost cupcakes or cakes for an even, decorative finish. It helps create professional-looking designs.
- Cool Cakes First: Always allow cakes to cool completely before frosting. Frosting warm cakes can cause it to melt and slide off.
- Adjust Consistency: If the frosting is too thick, add a little more milk. If it’s too thin, add more confectioners’ sugar to thicken.
- Flavor Boost: Add a pinch of salt or a splash of vanilla extract to enhance the peanut butter flavor.
FAQs
This delicious frosting can be stored at room temperature for 2 to 3 days. Place in an air tight jar for easily frosting cake or cupcakes for the next several days.
You can also place in the fridge and it will last about a week. When you are ready to use again, let it thaw to room temperature and stir to make it fluffy again.
This frosting will cover about 20-24 cupcakes depending on how much frosting you use. We recommend using a piping bag to even coat the cupcakes and make sure you have enough peanut butter buttercream frosting.
You can also frost a 9×13 cake or 2 9-inch round cakes or 8-inch with this peanut butter frosting recipe in the layers.
To make sure that your frosting doesn’t separate, make sure you start with room temperature ingredients. When ingredients are too hot or too cold that causes frosting to separate.
It is important to start with room temperature butter, making sure it is not melted but soft. Also, starting with room temperature peanut butter results in creamy peanut butter frosting.
Yes, freezing peanut butter frosting is easy to do. Place in an airtight container that is freezer safe and store in freezer. The frosting will last about 2 months if stored properly.
When you are ready to use the leftovers, thaw the frosting at room temperature and then top your favorite cakes. You will still have smooth and creamy frosting to use again.
Try More Frosting Recipes
- Vanilla Buttercream Frosting Recipe
- Cool Whip Frosting Recipe
- Cool Whip Cream Cheese Frosting
- Nutella Frosting Recipe
- Cream Cheese Frosting
- Cookie Dough Frosting
Whip up this easy 4-ingredient Peanut Butter Frosting today and take your cakes, cupcakes, or cookies to the next level! Bake, frost, and leave a comment below to share how your dessert turned out.
Peanut Butter Frosting
Ingredients
- ½ cup 1 stick unsalted butter, softened
- 1 cup peanut butter
- 2-3 tablespoons milk
- 3 cups powdered sugar
Instructions
- In a medium bowl, cream together butter and peanut butter until smooth and fluffy
- Gradually add powdered sugar, alternating with milk, beating after each additional until desired consistency
- Frost cupcakes and garnish with candy or sprinkles if desired
- Store leftovers in airtight container
Can peanut butter frosting be made up ahead of time?
Yes it can. I would keep in the fridge until ready to use. You might need allow it to warm slightly and rewhip it before using.