Why You’ll Love Chocolate and Peanut Butter Texas Sheet Cake Recipe

I love this recipe because it comes together in one bowl for the cake, which makes the process quick and easy. The texture is soft and moist, and the layers add a beautiful contrast between creamy and fudgy. The peanut butter frosting brings a slightly salty richness that pairs perfectly with the sweet chocolate glaze. I also like that it is baked in a large pan, making it perfect for gatherings or sharing.

Ingredients

(Note: All ingredient amounts are listed in the recipe card below.)

Cake
▢1 cup (2 sticks) unsalted butter, melted and cooled for 5 minutes
▢1 cup whole milk
▢½ cup sour cream
▢2 cups granulated sugar
▢2 large eggs
▢2 teaspoons vanilla extract
▢1 ½ cups all purpose flour
▢½ cup cocoa powder
▢1 teaspoon baking soda
▢½ teaspoon salt

Peanut Butter Layer
▢¾ cup creamy peanut butter
▢6 tablespoons unsalted butter, softened
▢1 teaspoon vanilla extract
▢¼ teaspoon salt
▢1 cup powdered sugar
▢2 tablespoons regular milk

Chocolate Frosting
▢¾ cup (1 1/2 sticks) unsalted butter, melted
▢⅓ cup milk
▢⅓ cup light corn syrup
▢1 tablespoon vanilla extract
▢6 oz dark chocolate, chopped
▢3 cups powdered sugar, sifted

Directions

I start by preheating the oven to 350°F and greasing a 13 x 18 jelly roll pan with butter or spray so the cake releases easily.

In a large bowl, I whisk together the melted butter, milk, sour cream, and sugar until smooth. Then I whisk in the eggs and vanilla extract. After that, I add the flour, cocoa powder, baking soda, and salt, whisking until everything is well combined into a smooth batter.

I pour the batter into the prepared pan and bake for about 20 minutes, or until a toothpick inserted in the center comes out clean. Once baked, I let the cake cool for about 10 minutes while I prepare the peanut butter layer.

For the peanut butter layer, I cream together the peanut butter and softened butter in a stand mixer for about 2 minutes. Then I mix in the vanilla and salt. I gradually add the powdered sugar, about half a cup at a time, beating well on medium speed and scraping the bowl as needed.

When the mixture looks dry, I add the milk one teaspoon at a time and continue beating until the frosting becomes light and fluffy. I spread this in a thick, even layer over the slightly cooled cake.

Next, I prepare the chocolate frosting by combining the melted butter, milk, corn syrup, and vanilla extract in a saucepan over medium heat until everything is melted and smooth. I reduce the heat to low, add the chopped chocolate, and whisk until fully melted.

I remove the mixture from the heat, whisk in the powdered sugar until smooth, and let it sit for about 5 minutes to thicken slightly. Then I slowly pour it over the peanut butter layer and gently spread it to the edges.

I let the frosting set for about 30 minutes before slicing and serving.

Servings and Timing

Prep time: 10 minutes
Cook time: 30 minutes
Additional time: 30 minutes
Total time: 1 hour 10 minutes

Servings: about 24 slices

Variations

I like to swap the dark chocolate in the frosting for semi-sweet chocolate when I want a slightly sweeter finish. Sometimes I add a handful of chopped peanuts on top of the frosting for extra crunch.

If I want a richer peanut butter flavor, I increase the peanut butter slightly in the frosting layer. I can also use crunchy peanut butter instead of creamy to add texture.

For a fun twist, I sometimes drizzle a bit of melted peanut butter over the top after the chocolate sets. It adds a decorative touch and enhances the flavor.

Storage/Reheating

I store this cake covered at room temperature for up to 2 days, or in the refrigerator for up to 5 days. I make sure it is in an airtight container so it stays moist.

If I refrigerate it, I like to let a slice sit at room temperature for a bit before eating so the frosting softens. For a slightly warm treat, I microwave a slice for about 10 to 15 seconds.

FAQs

Can I make this cake ahead of time?

I like making it a day ahead because the layers set beautifully and the flavors blend even more.

Do I have to use a jelly roll pan?

I prefer a 13 x 18 pan for the classic thin sheet cake texture, but I can use a slightly smaller pan for a thicker cake and adjust the baking time.

Can I use natural peanut butter?

I can, but I find that regular creamy peanut butter gives a smoother and more stable frosting.

Why is my peanut butter layer too thick?

If it feels too thick, I add a little more milk, one teaspoon at a time, until it becomes spreadable.

Can I freeze this cake?

I can freeze it in slices, wrapped well, for up to 2 months. I thaw it in the refrigerator before serving.

How do I know when the cake is done baking?

I check with a toothpick in the center. If it comes out clean or with a few crumbs, it is ready.

Can I skip the corn syrup in the frosting?

I can leave it out, but it helps give the frosting a smooth and glossy finish.

What type of cocoa powder should I use?

I usually use unsweetened cocoa powder for a rich chocolate flavor.

Can I double the recipe?

I can double it, but I need a larger pan or I bake in two separate pans to ensure even cooking.

How do I get clean slices?

I use a sharp knife and wipe it clean between cuts for neat slices.

Conclusion

I enjoy making this Chocolate and Peanut Butter Texas Sheet Cake whenever I want a dessert that feels rich, comforting, and impressive without being complicated. The soft chocolate cake, creamy peanut butter layer, and smooth chocolate frosting create a perfect combination that I always come back to. It is a reliable recipe that delivers big flavor every time.