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Chocolate Sheet Cake with Decadent Chocolate Frosting Recipe


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4.1 from 74 reviews

  • Author: Ava
  • Total Time: 50 minutes
  • Yield: 24 servings
  • Diet: Vegetarian

Description

This decadent Chocolate Sheet Cake with rich Chocolate Frosting is a perfect treat for any occasion. Featuring a moist, chocolatey cake base topped with a smooth and creamy chocolate frosting, this dessert combines simple ingredients and straightforward steps to create a classic favorite that serves 24. The recipe uses a baking method to ensure a fluffy texture, and the frosting adds an indulgent finish.


Ingredients

Cake Ingredients

  • 1 cup Butter
  • 1/3 cup Unsweetened Cocoa Powder
  • 1 cup Water
  • 2 cups All Purpose Flour
  • 2 cups Granulated Sugar
  • 1 teaspoon Baking Soda
  • 1/4 teaspoon Salt
  • 2 Large Eggs
  • 1/2 cup Buttermilk
  • 2 teaspoons Vanilla Extract

Frosting Ingredients

  • 1 cup Unsalted Butter (softened)
  • 3 cups Confectioners Sugar
  • 1/2 cup Unsweetened Cocoa Powder
  • 3-4 Tablespoons Heavy Whipping Cream
  • 2 teaspoons Vanilla Extract
  • 1/2 teaspoon Salt


Instructions

  1. Preheat and Prepare Pan: Preheat your oven to 350 degrees Fahrenheit and grease a 9×13 inch baking pan to prepare for the cake batter.
  2. Make Chocolate Mixture: In a saucepan over medium heat, combine butter, cocoa powder, and water. Stir continuously until the mixture comes to a boil. Remove from heat and set aside to cool slightly.
  3. Mix Dry Ingredients: In a large mixing bowl, combine flour, granulated sugar, baking soda, and salt. Stir these dry ingredients together to distribute evenly.
  4. Combine Chocolate Mixture with Dry Ingredients: Pour the slightly cooled chocolate mixture into the dry ingredients and beat well to combine.
  5. Add Wet Ingredients: Add eggs, buttermilk, and vanilla extract to the bowl and beat thoroughly until the batter is smooth and fully incorporated.
  6. Bake the Cake: Pour the batter into the prepared baking pan and bake in the preheated oven for 30-35 minutes, or until a toothpick inserted in the center comes out clean. Allow the cake to cool completely in the pan before frosting.
  7. Prepare Frosting: Using a hand mixer or stand mixer, beat the softened butter on medium speed for 2-3 minutes until creamy and smooth.
  8. Add Dry Frosting Ingredients: Add confectioners sugar, cocoa powder, and salt to the creamed butter. Mix on low speed until combined (about 1 minute).
  9. Adjust Frosting Consistency: Add 3 tablespoons of heavy whipping cream and vanilla extract. Continue mixing on low speed until the frosting is smooth. Add additional heavy whipping cream one tablespoon at a time if needed to reach desired consistency.
  10. Frost the Cake: Spread the prepared frosting evenly over the completely cooled cake using a spatula or knife.
  11. Serve: Slice the cake into 24 pieces and serve. Enjoy this rich, chocolatey treat!

Notes

  • Ensure the cake is completely cooled before frosting to prevent the frosting from melting.
  • Use room temperature eggs and butter for better batter consistency.
  • If you prefer a richer frosting, use heavy whipping cream as needed to achieve a creamier texture.
  • Store leftover cake in an airtight container at room temperature for up to 3 days or refrigerated for up to a week.
  • For extra flavor, you can add a pinch of espresso powder to the cake batter.
  • Prep Time: 15 minutes
  • Cook Time: 35 minutes
  • Category: Dessert
  • Method: Baking
  • Cuisine: American