Peanut Butter Frosting is creamy, rich, and perfectly sweet, with a smooth texture that spreads effortlessly, making it the perfect topping for cakes, cupcakes, or cookies! If you love peanut butter, you will want to spread this frosting on everything, from brownies to donuts, or even enjoy it straight from the bowl—it’s that good! It would add even more nutty flavor to my Peanut Butter and Jelly Cupcakes!
Ingredients & Substitutions
- Milk: Whole milk adds moisture and helps create a smooth, spreadable texture. It also balances the sweetness. If you don’t have whole milk, you can use any milk you have, like 2%, skim, or even non-dairy milk (almond, oat, or soy). Heavy cream or half-and-half work for a richer frosting.
- Peanut Butter: We can’t have peanut butter frosting without the peanut butter! I used creamy peanut butter, but crunchy peanut butter would work, too. (But, crunchy peanut butter could make the frosting a little harder to spread.)
- Confectioners’ Sugar: Confectioners’ sugar (powdered sugar) sweetens the frosting and gives it structure, making it light and fluffy. If you’re out of confectioners’ sugar, you can blend granulated sugar into a fine powder with cornstarch (1 cup granulated sugar + 1 tablespoon cornstarch).
Delicious Ways To Use Peanut Butter Frosting
Peanut butter frosting is perfect for cakes, cupcakes, brownies, and cookies. I love to spread it on banana bread, swirl it onto muffins (like my Chocolate Chip Muffins–yum), or use it to fill sandwich cookies. You can even dip pretzels or fruit for a sweet snack! I spread a little bit on my buttermilk pancakes and added a dollop of whipped cream and a few banana slices for my weekend breakfast. I highly recommend that!
Can I Make The Frosting Thicker or Thinner?
Yes, you can make this frosting as thick or as thin as you prefer. To make the frosting thicker, add more confectioners’ sugar (a little bit at a time). To make it thinner, add a small amount of milk at a time until it reaches your desired consistency.
How To Store Peanut Butter Frosting
Store peanut butter frosting in an airtight container in the refrigerator for up to a week. Before using, let it sit at room temperature for a few minutes to soften. I like to gently re-whip it for a smooth texture.
Peanut Butter Frosting
Ingredients
- ¼ cup (2 ounces / 61 g) whole milk
- ¼ cup (64.5 g) creamy peanut butter
- 4 cups (500 g) confectioners' sugar
Instructions
- Add all ingredients to a large bowl. Using a handheld mixer on low speed, mix until fully incorporated and creamy.
- Add more milk, if needed, until the frosting reaches your desired consistency.
Did you make this recipe?
Thank you for making my recipe! You took pictures, right? Well go ahead and post them on Instagram! Be sure to mention me @iambaker and use the hashtag #YouAreBaker.
Exactly how we make ours except we use milk instead of water. It’s creamier and adds a little flavor. This is part of my entire family’s annual birthday cake, Spice Cake with Peanut Butter icing. Everyone always puts their nose up at it but once they taste it they are an instant convert. It is AWESOME. 🙂
That is awesome Angie! That cake sounds amazing… is your family looking to adopt?? 🙂
I loved your suggestion so much, this is now how I make it too! Thank you!!
FYI… any recipe that calls for water I replace with milk!! Whether it’s for cooking or baking, it just enriches a recipe that much more ;-).