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chocolate fudge brownies with rich frosting cut into squares on white surface

Simple Chocolate Sheet Cake

Richard KlausRichard Klaus
A classic, easy-to-make chocolate sheet cake with a rich and creamy frosting, perfect for any occasion.
Prep Time 20 minutes
Cook Time 35 minutes
Total Time 55 minutes
Course Dessert
Cuisine American
Servings 12 slices
Calories 320 kcal

Equipment

  • 1 9x13 inch baking pan greased and floured
  • 1 electric mixer
  • 1 Mixing Bowl large

Ingredients
  

Dry Ingredients

  • 2 cups all-purpose flour
  • 1 3/4 cups granulated sugar
  • 3/4 cup unsweetened cocoa powder
  • 1 1/2 tsp baking powder
  • 1 1/2 tsp baking soda
  • 1 tsp salt

Wet Ingredients

  • 2 large eggs room temperature
  • 1 cup whole milk
  • 1/2 cup vegetable oil
  • 2 tsp vanilla extract
  • 1 cup boiling water

Classic Frosting

  • 1/2 cup unsalted butter softened
  • 2/3 cup unsweetened cocoa powder
  • 3 cups powdered sugar
  • 1/3 cup milk
  • 1 tsp vanilla extract

Instructions
 

Preparation

  • Preheat your oven to 350°F (175°C). Grease and flour a 9x13-inch baking pan, ensuring all corners are covered.

Making the Batter

  • In a large mixing bowl, combine the flour, sugar, cocoa powder, baking powder, baking soda, and salt. Stir to blend well.
  • In another bowl, whisk together the eggs, milk, oil, and vanilla extract until smooth. Gradually add the wet ingredients to the dry mixture, stirring until just combined.
  • Carefully stir in the boiling water until the batter is smooth. The batter will be thin, which is normal.

Baking the Cake

  • Pour the batter into the prepared baking pan. Bake in the preheated oven for 30 to 35 minutes, or until a toothpick inserted into the center comes out clean.

Cooling and Frosting

  • Allow the cake to cool in the pan for 10 minutes, then remove it from the pan and let it cool completely on a wire rack.
  • For the frosting, beat the softened butter in a medium bowl until creamy. Gradually add cocoa powder and powdered sugar, alternating with milk, beating until fluffy. Stir in vanilla.
  • Spread the frosting evenly over the cooled cake. Use a spatula to create swirls for a decorative touch.

Serving and Storage

  • Slice the cake into squares and serve. This cake pairs wonderfully with a scoop of vanilla ice cream.
  • Store any leftovers in an airtight container at room temperature for up to three days, or refrigerate for up to a week.

Notes

Pro Tips: Ensure all ingredients are at room temperature before mixing for a smoother batter. Ingredient Substitutions: Use almond milk instead of whole milk for a dairy-free option. How to Serve: Serve warm with a scoop of vanilla ice cream or a dollop of whipped cream. Storage & Freshness: Keep in an airtight container to maintain freshness. Make-Ahead Tips: Bake the cake a day in advance and frost just before serving.
Keyword chocolate frosting recipe, easy chocolate cake, simple chocolate sheet cake