4.97 from 623 votes

Peanut Butter Frosting

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1,101 Comments

Servings: 12 generously frosted cupcakes or 24 modestly frosted cupcakes

10 mins

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A silky smooth but perfectly pipeable peanut butter frosting that’s the perfect complement to any cake or cupcake. Also great for just eating by the spoonful!

Peanut butter frosting on a chocolate cupcake

Maybe you guys haven’t noticed, but I’ve been working on bulking up my “Frostings” section on the blog.

In the past, I would share cake or cupcake recipes and tag on my preferred complementary frosting, but I’m a big believer in choices. Maybe you’d rather frost your funfetti cake with chocolate frosting (or even peanut butter frosting) instead of buttercream, right? Well I wanted to have a good variety of options for you to choose from.

So far I’ve shared my favorites of the following:

And today I’m adding peanut butter frosting to the list.

This recipe is super easy to make, and on Monday I’ll be sharing a very complementary and very dark chocolate cupcake recipe with you, but of course you can put it on whatever you want. You can even just eat it by the spoonful, I know I did.

And yet it remains a mystery to me why my cardio sessions aren’t paying off 😭

Anyway, Peanut Butter Frosting requires just 6 ingredients to make. It’s smooth, creamy, and is great for piping on top of cupcakes or decorating a cake.

peanut butter frosting in a piping bag

Tips for Making Peanut Butter Frosting

  • While chunky or creamy peanut butter can work in this peanut butter frosting recipe, I don’t recommend using chunky unless you don’t intend to pipe the frosting. The little peanut pieces will clog up your frosting tips in a second.
  • don’t recommend using natural peanut butter (the kind that separates, you know the one that you usually need to stir before using). I haven’t tried it myself but I’m pretty certain that it wouldn’t work too nicely work with this recipe (it would be too oily).
  • This peanut butter frosting pipes very nicely as written. However, for a stiffer frosting, you can add an additional 1/2-1 cup (65-125g) of powdered sugar.

How Many Cupcakes/How Much Cake Will this Peanut Butter Frosting Cover?

  • If you’re generously frosting your cupcakes (as seen in my cupcake photo below), then this frosting will handily cover 12-15 cupcakes. If you’re being a bit more modest, it will cover 24 (I covered 24 cupcakes with peanut butter frosting rosettes using the 1M tip).
  • This frosting will also cover a 9×13 sheet cake or a round 2-layer 8″ or 9″ cake. Now I’m just thinking about how I want to make a cake with this frosting and then cover it with ganache… Yum!

peanut butter frosting on a chocolate cupcake

Enjoy!

Oh, and do you have any requests for other frosting recipes you’d like to see? I’m currently working on caramel but would love any suggestions that you have!

How to Make Peanut Butter Frosting

Peanut butter frosting on cupcake
4.97 from 623 votes

Peanut Butter Frosting

A silky smooth but perfectly pipeable peanut butter frosting that's the perfect complement to any cake or cupcake. Also great for just eating by the spoonful!
Prep: 10 minutes
Total: 10 minutes
Servings: 12 generously frosted cupcakes or 24 modestly frosted cupcakes
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Ingredients

  • 1 cup (226 g) unsalted butter, softened to room temperature
  • 1 cup (245 g) creamy peanut butter
  • 3 cups (375 g) powdered sugar
  • 1 teaspoon vanilla extract
  • ½ teaspoon salt
  • 2 Tablespoons milk

Instructions 

  • Combine butter and peanut butter in a large bowl and use an electric mixer to beat until creamy and well-combined.  
    1 cup (226 g) unsalted butter, 1 cup (245 g) creamy peanut butter
  • Gradually (about ⅓ cup at a time), with mixer on low speed add powdered sugar until completely combined. Be sure to scrape the sides and bottom of the bowl so all ingredients are well-combined. 
    3 cups (375 g) powdered sugar
  • Stir in vanilla extract and salt.
    1 teaspoon vanilla extract, ½ teaspoon salt
  • With mixer on low-speed, add milk and stir until well-combined. Gradually increase speed to high and beat for 30 seconds.  
    2 Tablespoons milk
  • Spread or pipe frosting onto completely cooled cupcakes or cake.

Notes

This cake will frost a 9x13 sheet cake, a 2-layer round 8" or 9" cake, 24 cupcakes, or will generously frost 12 cupcakes (as seen in photos)

Natural Peanut Butter

Since first sharing the recipe I have now tested this recipe with natural peanut butter and it worked just fine, though was a bit gritty. 

Nutrition

Serving: 1/12th batch | Calories: 381kcal | Carbohydrates: 34g | Protein: 6g | Fat: 26g | Saturated Fat: 12g | Trans Fat: 1g | Cholesterol: 41mg | Sodium: 199mg | Potassium: 148mg | Fiber: 1g | Sugar: 32g | Vitamin A: 477IU | Calcium: 17mg | Iron: 1mg

Nutrition information is automatically calculated, so should only be used as an approximation.

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Recipe Rating




1,101 Comments

  1. Sarina says:

    Do you think this frosting would be easy enough to colour? I wanted to make it pinky or reddish

    1. Sam says:

      Hi Sarina! I think it would be pretty tough. It would probably look a little dirty. 🙁

  2. Annie says:

    Absolutely delicious and super easy to make! I’ve never made frosting before and this was beyond yummy. My only comment is that the recipe makes a LOT of frosting so I might just scale it back a little next time.

    1. Sam says:

      I’m so glad you enjoyed it so much, Annie! 🙂

  3. Jeanette Copeland says:

    I made this for my nephew for his birthday. Everyone loved the frosting. My niece couldn’t stay out of it before I iced the cake. Thank you for the recipe.

    1. Sam says:

      Hi Jeanette! I am so glad everyone enjoyed it so much. 🙂

  4. LisaR says:

    5 stars
    Just made this today and this frosting is one of the best. So creamy and easy to pipe onto cupcakes. My husband loved this. I piped this frosting onto chocolate cupcakes and topped with heath sprinkles. 5 star

    1. Sugar Spun Run says:

      I am so glad that you loved it, Lisa! I love the addition of heath sprinkles too! Yum! 🙂

  5. Abby says:

    5 stars
    So good! I had leftovers from frosting a dozen cupcakes, and I may or may not have just eaten a giant spoon full before putting the rest away…

    1. Sugar Spun Run says:

      I too have been guilty of doing this! I am happy you enjoyed the frosting, Abby! 🙂

  6. Rose says:

    Hi Christine, I want to try this for a wedding but worried the frosting will melt too much if it’s warm. If I make this as written, do you think it will hold up? What would you think if I used 1/2 shortening, 1/2 butter?

  7. Helen says:

    My frosting resulted in tasting heavily like butter, any way to fix this, followed recipe exactly as given?

    1. Sam says:

      That’s really odd, Helen! The peanut butter should be the main flavor. I’m not quite sure how the butter would overtake the peanut butter. 🙁

  8. siobhan says:

    Hi, would the frosting cover the entire cake or just the top? I want to frost an entire birthday cake and as a complete novice I have no idea on quantities!

    1. Sam says:

      This will completely cover a 2 layer 8 or 9 inch cake, or a 9 x 13. 🙂

  9. Christine says:

    5 stars
    This is by far the best peanut butter frosting I have we ate and made. Love it

    1. Sam says:

      I am so glad you enjoyed it so much, Christine! 🙂

  10. Lorie jones says:

    How much cream cheese could i add to this recipe for flavor and texture without messinit up?

    1. Sam says:

      Hi Lorie! I would probably recommend making my cream cheese frosting and adding peanut butter to that instead. 🙂

  11. Kristsl says:

    5 stars
    I made on old fashion red beet cake and I used this frosting. Everyone was amazed at how light and fluffy it was. I HATE making icing but will make this again it was simple and delicious.

    1. Sam says:

      That sounds like an interesting combination! I am so glad you enjoyed it so much. 🙂

  12. Vickey Smith says:

    I used this recipe about a month ago for my bosses going away party and it was a huge hit! The flavor and texture is amazing! Must say this is one of the best peanut butter frostings I’ve come across! Thanks for publishing.

    1. Sam says:

      I am so glad everyone enjoyed it so much, Vickey! 🙂

    2. mariah says:

      5 stars
      im really gonna try it im only 12 so im gonna try it bc i love peanut butter

      1. Sam says:

        I hope you love it, Mariah! 🙂

  13. Natalie Snyder says:

    Can this be made in advance and stored in the fridge before topping onto cake?

    1. Sam says:

      I think holding it overnight will be fine. Make sure to wrap it tightly and let it come to room temperature, and maybe give it a little stir before using. 🙂

  14. Alyssa says:

    5 stars
    I commented a few days ago about making a chocolate cake with peanut butter frosting. Update: He loved it! This frosting is delicious! It was super easy to make and didn’t take as much time as i thought it would. So glad that i tried out this recipe. Im going to try another one of your recipes!

    1. Sam says:

      That is so awesome! Thanks for updating me. I’m glad he enjoyed it so much. I hope you enjoy everything else too! 🙂

  15. Katie says:

    Can I use the cream cheese instead of unsalted butter?

    1. Sam says:

      Hi Katie! I wouldn’t substitute it, but you could add a little cream cheese to the frosting for that flavor/texture. 🙂