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Peanut Butter Texas Sheet Cake

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This easy peanut butter Texas cake is perfect for feeding a crowd.  It is made in a half sheet pan, so you can cut plenty of pieces and the batter comes together in a saucepan.

Pieces of peanut butter Texas sheet cake next to sheet pan with more peanut butter cake.

This fun sheet cake is full of peanut butter flavor.  It is made in the Texas sheet cake style where you boil the butter and water on the stove, so there is no need for creaming or fussing to get it together. 

Plus it is a great size for sharing, but don’t worry it will disappear quickly.  I made it as one of the treats at Little Dude’s second birthday and thought it was time to remake the recipe, shoot some quick pictures and update the post a bit.

Ingredients including peanut butter, butter, flour, sugar, milk, etc. ready to be made into Texas sheet cake.

For one of Little Dude’s birthday cakes, I thought it would be fun to do a sheet cake with one of his favorite flavors… peanut butter!   I loved the idea of making a sheet cake.

The fact that the cake isn’t as thick as a traditional cake makes it so people could just have a little bit if they wanted or as much as they please.

Added bonus: I could pile it high with white chocolate buttercream! A few sprinkles around the side and a birthday cake is born.

As you can tell from the pictures, this cake is also great with peanut butter icing. That makes it more like a standard Texas sheet cake.

One of our favorite parts about baking sheet cakes is they don’t take any special equipment.  Just a sauce pan, a couple of bowl and the sheet cake pan.

No need for the mixer, which is good because I only wanted to wash it so many times for this one party! Plus there is the added bonus that you don’t have to bring your ingredients to room temperature.

This cake has been a hit every time I have made it.  This most recent time one of my brothers took a bite and said it tasted like Reese’s cereal.  It kind of does! But in a much softer cakier kind of way!

Peanut butter Texas sheet cake with warm peanut butter icing poured over the top.

So if you are half the peanut butter fans we are, you should definitely give this cake a go.  The size makes it perfect for a potluck, BBQ or party and the fact that in can go from idea to coming out of the oven in less than 45 minutes is nice too.  There’s no waiting for the butter to soften to be able to cream it!

fork taking bite of peanut butter sheet cake with fluffy white chocolate frosting.

More great peanut butter recipes

Some of our other favorite peanut butter treats are Emily’s no-bake peanut butter bars.  We had some again last weekend and they were a hit with my husband yet again! We also loved the peanut butter chocolate chip no churn ice cream

Pieces of peanut butter Texas sheet cake with peanut butter icing on a plate, ready to eat.

For a fun sweet and salty treat, try making peanut butter pie with a chocolate covered pretzel crust. Peanut butter popcorn or peanut butter chocolate chip cookies would be wonderful as well.

For a healthier treat, we love the peanut butter and yogurt fruit dip and it really doesn’t get much easier than that to make either!  What are your favorite peanut butter treats?

Love this recipe? Give it a ⭐⭐⭐⭐⭐ review in the recipe card below!

Plate with three pieces of peanut butter sheet cake with peanut butter icing.

Peanut Butter Texas Sheet Cake

Servings: 24 Servings
Author: Carlee
This easy and peanut buttery cake is perfect for feeding a crowd. It is made much like a Texas sheet cake and is great with peanut butter icing. It is also great with chocolate icing, or white chocolate buttercream.
5 from 6 ratings
Prep Time 10 minutes
Cook Time 25 minutes
Total Time 35 minutes



  • cups all purpose flour
  • 2 cups granulated sugar
  • ¼ teaspoon salt
  • 1 teaspoon baking soda
  • ½ cup milk
  • 1 teaspoon vinegar
  • 2 large eggs
  • 1 teaspoon vanilla extract
  • 1 cup butter
  • cup peanut butter
  • 1 cup hot water

Peanut Butter Icing

  • ¾ cup butter
  • 6 Tablespoons milk
  • ½ cup creamy peanut butter
  • cups powdered sugar
  • 2 teaspoons vanilla extract
Makes: 13 x 18inch rectangle1inch height



  • Preheat oven to 350°F
  • In a large bowl, mix together flour, sugar, salt and baking soda.
    2½ cups all purpose flour, 2 cups granulated sugar, ¼ teaspoon salt, 1 teaspoon baking soda
  • In a small bowl, mix together milk and vinegar.
    ½ cup milk, 1 teaspoon vinegar
  • In a saucepan, melt butter over low heat. Stir in peanut butter until smooth and melted. Mix in hot water, bring to a bubble and remove from heat.
    1 cup butter, ⅔ cup peanut butter, 1 cup hot water
  • Mix the eggs and vanilla into the milk mixture.
    1 teaspoon vanilla extract, 2 large eggs
  • Add hot peanut butter mixture to flour mixture and stir until just barely mixed. Stir in milk mixture and continue to stir until just incorporated.
  • Spread into a greased 13x18x1-inch half sheet pan and bake at 350°F for 25 minutes.


  • Add butter, milk, and peanut butter to a medium saucepan. Bring to a boil, while stirring.
    ¾ cup butter, 6 Tablespoons milk, ½ cup creamy peanut butter
  • Remove from heat and whisk in powdered sugar and vanilla.
    3½ cups powdered sugar, 2 teaspoons vanilla extract
  • Pour warm frosting over warm cake, using a spatula to spread it evenly. It should be thin enough to spread easily while it is warm. The frosting will set as it cools.


We also love this cake with white chocolate buttercream or chocolate frosting


Serving: 1pieceCalories: 231kcalCarbohydrates: 29gProtein: 4gFat: 12gSaturated Fat: 6gPolyunsaturated Fat: 5gCholesterol: 36mgSodium: 179mgFiber: 1gSugar: 17g

Nutritional Disclaimer

“Cooking With Carlee” is not a dietitian or nutritionist, and any nutritional information shared is an estimate. If calorie count and other nutritional values are important to you, we recommend running the ingredients through whichever online nutritional calculator you prefer. Calories and other nutritional values can vary quite a bit depending on which brands were used.

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Recipe Rating


Tuesday 7th of May 2024

Ooh what a delightful recipe for PB lovers! Looks so good...I have to make this :D


Tuesday 7th of May 2024

I hope you do!

Catherine Sokolowski

Saturday 4th of May 2024

My grandson only eats peanut butter! I think he will love this cake. I will definitely make this for him when we visit in a few weeks.


Sunday 5th of May 2024

It sounds like he and I would be fast friends! This cake sounds perfect for him.

Thursday 2nd of May 2024

My family loved this!


Monday 8th of May 2023

I only have natural peanut butter would that work? This recipe looks so delicious


Monday 8th of May 2023

As long as your peanut butter is well stirred (and has been well stirred throughout the life of the jar) it should work great! If it hasn't been well stirred, the solids to oil ratio may be off a bit.

Big Rigs 'n Lil' Cookies

Wednesday 11th of April 2018

This sounds so good! You can't go wrong with adding peanut butter to a birthday!

Big Rigs 'n Lil' Cookies

Monday 14th of September 2020

Made this yesterday, and I think it just might be my new favorite cake!


Friday 13th of April 2018

I agree, the more peanut butter the better!