Peanut Butter Cake with Peanut Butter Frosting

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If you have a peanut butter-loving family, they’re going to love this peanut butter cake with peanut butter frosting recipe from the first melt-in-your-mouth bite. It features a tender peanut butter-flavored cake made from scratch with a deliciously creamy peanut butter cream cheese frosting.

A fork with a piece of peanut butter cake with peanut butter frosting.

The only thing better than a homemade peanut butter cake is a peanut butter cake with peanut butter frosting. I am grateful to my dear family friend, Kate Burhop, for sharing her grandmother’s recipe with me and I was so excited to make it for my peanut butter-loving family. This is similar to my old-fashioned yellow cake with peanut butter fudge icing.

However, this time we’re making a cake from scratch that includes peanut butter, sugar, butter, eggs, and buttermilk (it’s the Southern way) for ultimate tenderness and moistness. Yes, this cake melts in your mouth even without the frosting. The other difference is that instead of an old-fashioned peanut butter icing, this peanut butter frosting is made with cream cheese, peanut butter, and powdered sugar. That cream cheese twang really differentiates the two and this one is creamier compared to the other icing’s fudge consistency.

It may sound like there’s a lot going on, but let me tell you, this is such an easy peanut butter cake recipe. You just have to slowly combine the cake ingredients together, which takes no time at all. Then bake them for about 35 minutes and while cooling, mix the frosting ingredients together. Then you can ice the cake however you want.

I just know you’re going to love this peanut butter cake recipe as much as I do. The peanut butter flavor is so good, y’all. The peanut butter lover in your life will fall head over heels for it! It’s the first cake Kate learned to bake from scratch and her most requested dessert recipe. In just one bite you’ll know exactly why! Just don’t forget to serve it with a glass of milk (trust me).

Ingredients for peanut butter cake with peanut butter frosting.

Recipe Ingredients

  • Self-rising flour
  • Granulated sugar
  • Baking soda
  • Creamy peanut butter
  • Cream cheese (check out our recipe for easy-peasy homemade cream cheese)
  • Powdered sugar
  • Unsalted butter or margarine
  • Eggs

How to Make Peanut Butter Cake With Peanut Butter Frosting

Place sugar in mixing bowl.

Place sugar…

Place butter in mixing bowl.

Butter…

Place peanut butter in mixing bowl.

Peanut butter…

Place eggs in mixing bowl.

And eggs in a mixing bowl.

Mix ingredients together.

Mix with an electric mixer until well combined and smooth.

In a separate bowl, combine the self-rising flour with baking soda.

In a separate bowl, combine the self-rising flour with baking soda.

I don’t sift. Neither did Mamaw. A spoon works just fine for this.

Slowly combine dry and wet ingredients.

Then alternate between adding the flour mixture to the peanut butter mixture

Slowly add buttermilk to peanut butter cake batter as well.

With adding the buttermilk as well.

Peanut butter cake batter.

When you’ve finished mixing your ingredients, the cake batter should look something like this.

Now using cooking spray, grease your pans. This cake is enough to fill three 8-inch cake pans.

You can also bake it in a 9×13 baking dish if you’d prefer a peanut butter sheet cake and just ice it right in the pan.

However, today I have a bit of time on my hands and have decided to go with my “intuition” for something special.

Peanut butter cake in three pans.

If using three 8-inch pans, bake at 350 for about 35 minutes.

Time may vary slightly if you decide to use differently sized pans.

Allow them to cool for 10 minutes in the pans before turning out to cool completely.

For peanut butter frosting, mix together peanut butter and cream cheese.

Making the Peanut Butter Frosting

For the frosting, combine the peanut butter and cream cheese in a mixing bowl.

Add powdered sugar to mixing bowl.

Then add the powdered sugar…

Add milk to mixing bowl.

And the milk.

You may need to add an extra tablespoon or two of milk if the mixture is too thick. Alternatively, if the mixture becomes too runny for your tastes, add extra powdered sugar.

Adding peanut butter frosting to peanut butter cake.

Then add the frosting between the cooled cake layers and cover the entire cake.

Piping peanut butter frosting onto cake.

You can even pipe on some little accents if you’re feeling extra fancy.

But really, frost your cake however you wish!

I assure you it will taste just as good if not better slopped on the cake as it will when neatly decorated.

Slice of peanut butter cake with peanut butter frosting.

Now if you’ll excuse me, I’m going to dive into this delicious slice of peanut butter cake with peanut butter frosting.

Storage

  • Store leftover peanut butter cake in an airtight container either at room temperature or in the fridge for up to 5 days. It tastes delicious when served chilled, so if you live in a warmer climate like here in the South, I recommend storing it in the fridge.
  • You can also freeze leftovers for up to 3 months. Thaw in the fridge or at room temperature before serving.

Recipe Notes

  • If you like, top your cake with a sprinkle of mini chocolate chips, chopped roasted peanuts, crushed peanut brittle, Reese’s Pieces, or pieces of Reese’s Peanut Butter Cup.
  • You want to use creamy peanut butter and not crunchy peanut butter as the texture won’t work for the cake or frosting.
  • If you’d prefer a chocolate peanut butter cake, substitute the peanut butter frosting for my creamy chocolate frosting.

Check out these other peanut butter treats:

Peanut Butter Candy

Old-Fashioned Peanut Butter Icing

Peanut Butter Cheesecake Cookie Bars

Easy Homemade Peanut Butter Cookies

Peanut Butter Brownies with Peanut Butter Fudge Icing

Peanut Butter Pie

Slice of peanut butter cake with peanut butter frosting.

Peanut Butter Cake With Peanut Butter Frosting

This peanut butter cake with peanut butter frosting recipe features a cake made from scratch with peanut butter cream cheese frosting.
Prep Time: 15 minutes
Cook Time: 35 minutes
Total Time: 50 minutes
Course: Dessert, Snack
Cuisine: American
Keyword: cake, frosting, icing, peanutbutter

Ingredients

Peanut Butter Cake

  • 2 2/3 cups self-rising flour
  • 2 tsp baking soda
  • 2 cups sugar
  • 1/2 cup butter or margarine
  • 1 cup peanut butter
  • 2 eggs
  • 2 cups buttermilk

Peanut Butter Frosting

  • 4 cups powdered sugar
  • 1.5 cups peanut butter
  • 8 ounces cream cheese
  • 2 tbsp milk

Instructions

  • Place sugar, butter, peanut butter, and eggs in a mixing bowl and mix with an electric mixer until well combined and smooth.
    2 cups sugar, 1/2 cup butter or margarine, 1 cup peanut butter, 2 eggs
  • Mix together dry ingredients (self-rising flour and baking soda) in a separate bowl. Combine the dry ingredients and the wet ingredients alternately with the buttermilk.
    2 2/3 cups self-rising flour, 2 tsp baking soda, 2 cups buttermilk
  • Bake in three cake pans at 350 for about 35 minutes. Allow the cakes to cool for 10 minutes in their pans before turning out to cool completely.

Frosting

  • Combine peanut butter, cream cheese, powdered sugar, and milk. Beat with an electric mixer until smooth and creamy. You may need to add an extra tablespoon or two of milk if the mixture is too thick. Alternatively, if the mixture becomes too runny for your tastes, add extra powdered sugar.
    4 cups powdered sugar, 1.5 cups peanut butter, 8 ounces cream cheese, 2 tbsp milk
  • Spread between the cooled cake layers and around the entire cake.

Video

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If you aren’t grateful, you’re not paying attention.

Submitted by Mary Beth Manville

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153 Comments

  1. I just made this cake and it is really good and moist……I also made one for my husband family but for this one I added nutter butter cookies to the batter and was really good. Thanks for a great recipe.

  2. This is an amazing recipe! I made this cake for my dad’s birthday, and it was a huge hit. I love the crumb of the cake. One of my layers stuck to the pan, so I made a two-layer cake and kept the third layer for myself. I found myself snacking on this un-frosted layer all day! It had the flavor of peanut butter cookies, but with a lighter texture. And the frosting…omg, the frosting. I refrigerated the excess (because of my ruined layer) and, cold, the frosting cubes just like fudge, and is mouthwatering on its own. I will be making this again and again! Thank you!

  3. I love this cake. …u are a blessing to cooking
    world. …im a faithful fan of yours & I love your country roots
    and fun stories. …you’ll always be my favorite kitchen blogger. ..
    Thanks so much for all your efforts in bringing
    us the most yumminess food recipes out there!!

  4. I just tried to make the PB frosting and it was a disaster! The peanut butter just clumped and the oil separated from the peanut butter making an oily mess. What happened?? I tried two batches and wasted a lot of ingredients and it happened both times. Do you use only natural peanut butter? I used Peter Pan full fat and 1 percent milk. In the first batch, I used heavy cream and it still would not combine. Glad this was just a test recipe. Going to look somewhere else for a PB frosting recipe.

    1. This happened to me tonight! I’ve made this recipe before with no troubles, but tonight…oily mess! Anyone have any ideas as to what is causing the breakdown? Thanks!

      1. The icing did the exact same thing to me tonight. I used walmart brand creamy. It was an oily mess.

      2. Hey Courtney! I’m so sorry that happened to you. My first thought is maybe the temperature of the cream cheese and perhaps the brand. I’ve never had that happen to me (and I always use the cheap stuff) so I’m at a loss but clearly something was amiss. I hope this is one of those ultra rare occasions!

  5. And one other thing…. I ‘frost’ a cake with ‘icing’. I’m from northeastern Arkansas…flat land farmers. Maybe that’s the difference from other’s way of saying it. 😉

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