Chocolate Sheet Cake with Chocolate Frosting

A serving of chocolate sheet cake with thick chocolate frosting on a plate.

5 from 2 votes

Chocolate Sheet Cake with Chocolate Frosting

This easy chocolate sheet cake is ultra-moist, rich, and baked in a 9×13 pan for simple slicing and serving. Finished with a smooth chocolate frosting, it’s perfect for parties, potlucks, or anytime you need a classic chocolate dessert that feeds a crowd.

Prep Time15

Cook Time35

Total Time50

Course: Dessert

Cuisine: American

Servings:

Author: Carrie Barnard

Cost: $7.54, $0.31 per Servings

Ingredients

For the Cake:

1 cup butter
⅓ cup unsweetened cocoa powder
1 cup water
2 cups All Purpose Flour
2 cups granulated sugar
1 teaspoon baking soda
¼ teaspoon salt
2 large eggs
½ cup buttermilk
2 teaspoons vanilla extract

For the Frosting:

1 cup Unsalted Butter (softened)
3 cups Confectioners Sugar
½ cup Unsweetened Cocoa Powder
3-4 Tablespoons Heavy Whipping Cream
2 teaspoons vanilla extract
½ teaspoon salt

Instructions

For the Cake:

Preheat the oven to 350 degrees Fahrenheit and grease a 9×13 baking pan.
In a saucepan, add 1 cup butter, 1/3 cup unsweetened cocoa powder, and 1 cup water. Bring the mixture to a boil, stirring until combined.
In a large mixing bowl, whisk together 2 cups all purpose flour, 2 cups granulated sugar, 1 teaspoon baking soda, and ¼ teaspoon salt.
Pour the hot chocolate mixture over the dry ingredients and stir until combined.
Add 2 large eggs, ½ cup buttermilk, and 2 teaspoons vanilla extract. Mix until smooth.
Pour into the prepared pan and bake for 30-35 minutes or until a toothpick inserted into the center comes out clean. Let cool completely before topping with the frosting.

For the Frosting:

In a large mixing bowl, beat 1 cup softened unsalted butter until smooth.
Add 3 cups confectioners sugar, ½ cup unsweetened cocoa powder, 3-4 tablespoons heavy whipping cream, 2 teaspoons vanilla extract, and ½ teaspoon salt. Beat until the frosting is smooth and creamy.
Spread the frosting on the cooled cake.
Then the cake is ready to slice, serve and enjoy!

Video

Notes

Refrigerate any leftovers, covered, for up to 1 week.

Nutrition