The Best Keto Peanut Butter Cream Cheese Frosting Recipe

Whether you are frosting brownies, cupcakes or chocolate cake, who doesn’t love a good creamy peanut butter frosting?

When following a keto diet it is easy to assume that creamy frostings are something you have to give up. Rest assured that you can enjoy delicious treats and stick to your diet!

Do Peanut Butter and Cream Cheese Go Together?

If you have not had the opportunity to try these two things together, it is high time you did. The cream cheese and peanut butter complement one another nicely and spread like a buttercream frosting.

Peanut Butter Cream Cheese Frosting Recipe

Prep Time

This easy peanut butter recipe can be made in a total time of about 15 minutes (assuming the cream cheese and butter have been set up to get to room temperature).


  • 8 oz cream cheese softened

  • 4 tablespoons unsalted butter - softened

  • 1 cup sugar-free powdered sugar

  • 1/2 cup natural peanut butter (smooth peanut butter works best if you plan to use a piping bag to decorate your baked good)

  • 1 teaspoon vanilla extract


  • The cream cheese and butter both need to be softened to room temperature prior to mixing.

  • Mix the cream cheese and butter in a medium-sized mixing bowl using either a hand mixer or a stand mixer on medium speed. You will need to scrape the sides of the bowl frequently.

  • Add the tsp vanilla extract.

  • Add the peanut butter.

  • Slowly add the powdered sweetener to the mixture.

Nutritional Information

Calories: If you divide this recipe to frost 12 cupcakes or cut brownies into that many squares, one serving of the frosting adds about 140 calories.

Carb Count: There are 3 net carbs for one cupcake, brownie or piece of cake frosted with the keto peanut butter cream cheese frosting.

How Do You Make Creamy Frosting Thicker?

Making a frosting that is your desired consistency is relatively simple. If you want your frosting to be thicker, there is a simple fix for that.

Start by adding just two tablespoons of extra confectioner sugar and mix well. If you want it a bit thicker, add a little bit more. Be mindful of the fact that this will make your frosting a little sweeter. With peanut butter frosting, you want a perfect balance.

What can you do if your frosting is too thick? Just add a little heavy cream to thin it out a bit. Be careful not to add too much at one time, as it is a delicate balance.

What's the Difference Between Cream Cheese and Buttercream Frosting?

A buttercream frosting is usually firm with a very smooth finish. Cream cheese frosting, on the other hand, tends to have lumps, can be a bit greasy, and may have a unique texture.

Uses for Peanut Butter Cream Cheese Frosting

So now that you have this fantastic recipe for delicious frosting, how will you use it?

Here are some suggestions of treats to frost with this deliciousness:

  • Banana Cake: Peanut butter and banana is an old classic snack. Put these together for a fantastic cake.

  • Brownies: Cream cheese brownies are amazing. Imagine adding peanut butter to chocolatey goodness.

  • Chocolate Chip Cupcakes: Vanilla cupcakes with chocolate chips sprinkled in are amazing filled with this peanut butter cream cheese frosting and topped with chocolate frosting.

  • Chocolate Cupcakes: Your favorite keto cake recipe will go well with this recipe!

  • Vanilla Layer Cake: Try vanilla layer cake with chocolate ganache between layers and the peanut butter cream cheese frosting on top.

  • Peanut Butter Cake: A peanut butter cake paired with the peanut butter cream cheese frosting is yummy! Drizzle some sugar-free chocolate syrup on top for a fun variation.