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This Peanut Butter Frosting is the perfect way to top your favorite cake, cupcakes, or brownies! This from-scratch buttercream is full of smooth, creamy peanut butter flavor!

closeup of creamy peanut butter frosting in small white bowl

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Peanut Butter Frosting

I am so excited to share this recipe with you today! Plan on baking something – a chocolate cake or cupcakes, or some fudgy brownies – so you can slather this creamy Peanut Butter frosting all over it!! ?

I’ve shared this recipe before as part of my Kit-Kat Cake post, but I felt like this recipe really needed to be in its own post. This is the MOST REQUESTED frosting recipe I have. It’s been shared at dozens and dozens and dozens of times at birthday parties, cookouts, potlucks, holiday gatherings, or just because I needed an easy dessert for company. I have been asked for this recipe countless times and I’m always happy to share it!

This Peanut Butter Frosting recipe is so easy and it comes together with a few common ingredients – butter, creamy peanut butter, powdered sugar, milk, and vanilla extract. That’s it. Although you can use a big stand mixer for this, a hand-mixer works just fine!

I won’t judge you for wanting to eat this by the spoonful, I may have done that a time or two myself! ?

peanut butter frosting in frosting bag with towel beside

Recipe for Peanut Butter Frosting

  • creamy peanut butter
  • salted butter, softened
  • confectioners’ sugar (powdered sugar)
  • milk or water
  • vanilla extract
step by step how to make peanut butter frosting

How to make Peanut Butter Frosting

  1. Cream the peanut butter and butter in a medium bowl with an electric mixer.
  2. Add sugar, 3 tbsp. milk and the vanilla extract. Mix with an electric mixer on low for 1 minute. Increase the speed to medium and mix until well combined and fluffy.
  3. Add the additional tablespoon of milk if frosting needs to be thinned out.
peanut butter frosting in small bowl and piping bag

Peanut Butter Frosting: Questions and Answers

  • My frosting is too thin, how do I fix it?

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Add more powdered sugar to reach the desired consistency. 

  • My frosting is too thick, how do I fix it?

Add more milk or water to reach the desired consistency. 

  • Is Peanut Butter Frosting gluten-free?

Yes! Since there are no wheat, barley, and rye used in the recipe – it is completely gluten-free!

  • Does Peanut Butter Frosting need to be refrigerated?

This frosting is safe to leave out at room temperature for 2-3 days. Any longer than that, you will need to refrigerate it. 

  • Can I use unsalted butter in place of the salted butter?

Absolutely. Depending on your tastes, you may want to add a pinch or two of salt to the frosting to help bring out the flavor. 

peanut butter frosting in mixing bowl

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closeup of peanut butter frosting
4.42 from 131 votes
Servings: 12 servings

Peanut Butter Frosting

By Jamie Sherman
This Peanut Butter Frosting is the perfect way to top your favorite cake, cupcakes, or brownies! This from-scratch buttercream is full of smooth, creamy peanut butter flavor!
Prep: 10 minutes
Total: 10 minutes

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We’ll email this post to you, so you can come back to it later!

Ingredients 

  • 1 cup creamy peanut butter
  • ½ cup salted butter, softened, 1 stick
  • 2 cups confectioners’ sugar, powdered sugar
  • 3 – 4 tablespoons milk or water
  • 2 teaspoons vanilla extract

Instructions 

  • Cream the peanut butter and butter in a medium bowl with an electric mixer.
  • Add sugar, 3 tablespoons milk and the vanilla extract. Mix with an electric mixer on low for 1 minute. Increase the speed to medium and mix until well combined and fluffy.
  • Add the additional tablespoon of milk if frosting needs to be thinned out.

Notes

  • Makes about 3 cups depending on how it whips up.

Nutrition

Calories: 278kcal, Carbohydrates: 25g, Protein: 5g, Fat: 19g, Saturated Fat: 7g, Polyunsaturated Fat: 3g, Monounsaturated Fat: 7g, Trans Fat: 0.3g, Cholesterol: 21mg, Sodium: 155mg, Potassium: 131mg, Fiber: 1g, Sugar: 22g, Vitamin A: 242IU, Calcium: 18mg, Iron: 0.4mg

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

Like this? Leave a comment below!

Jamie

Jamie Sherman founded Love Bakes Good Cakes in February 2012. She is a self-taught home cook passionate about sharing easy, delicious, and family-friendly recipes. From comforting classics to irresistible desserts, I believe homemade food brings people together. Join me on my journey of creating and sharing meals that bring joy to every table!

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4.42 from 131 votes (131 ratings without comment)

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12 Comments

  1. Ninnette says:

    What brand of peanut butter do you use?

    1. Jamie says:

      I prefer Jif, but any brand should be ok.

  2. Cindy Salisbury says:

    I just made this and wow! All ingredients are spot on and made the perfect peanut butter frosting! I have made many off your recipes and none ever failed! Thanks for sharing.

  3. Tina says:

    I absolutely love this frosting. So easy, nice for the taste buds and fluffy as a cloud. I put on a double fudge chocolate cake and my guest went crazy for it.

    1. Jamie says:

      Awww!! Thank you so much for your feedback – I appreciate it!

  4. Jeanne says:

    The recipe White Castle Casserole just introduced me to your site. I have thoroughly enjoyed it and gotten so many recipes. I love being able to print and get the pictures without any extra mess, just good clear recipes. I’m going to try and find you on facebook. Thank you for sharing.

    1. Jamie says:

      Thanks so much, Jeanne!

  5. Tracy Maddox says:

    Hello Jamie, I’m Tracy. Thanks for the recipe. Just what I needed. Do you have 1 for the P.B. cake. Da,stupid question to ask.Lol. Don’t mean to be pushing, All I got is yellow cake mix. Can I make it P.B. cake batter?

    1. Tracy Maddox says:

      Oh,yea almost 4got. I got to have it made by 6:30 p.m. Son-in-laws birthday. No rush ,I was just saying how dumb I was to wait last minute. But,that’s my middle name. Sorry to bother you. Have a great day Jamie. Thanks

      1. Jamie says:

        Sorry, I am just seeing this comment! I hope you found what you were looking for and I apologize for not seeing this sooner!

  6. Carlee says:

    You are playing to two of my weaknesses here, frosting and peanut butter! This looks delicious!