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chocolate sheet cake with sprinkles

Milk Chocolate Sheet Cake

Kylee Ayotte
This Milk Chocolate Sheet Cake is perfect for any occasion. It mixes up and bakes fast, meaning you can get it decorated in time for a birthday or any kind of holiday (mix up the sprinkles!). This is the great recipe for bringing to family parties, and is the go-to chocolate cake I use for everything!
5 from 3 votes
Prep Time 10 minutes
Cook Time 35 minutes
Total Time 45 minutes
Course Dessert
Cuisine American
Servings 18
Calories 459 kcal

Ingredients
 

  • CAKE
  • 1 cup dark brown sugar packed
  • 1 cup white sugar
  • 3/4 cup cocoa powder
  • 1 3/4 cup all-purpose flour
  • 2 tsp baking soda
  • 1 tsp baking powder
  • 1 tsp salt
  • 2 large eggs
  • 1 cup milk
  • 1/2 cup butter melted
  • 1 tsp vanilla extract
  • 1 cup hot water
  • FROSTING
  • 7 oz milk chocolate
  • 3.5 cups powdered sugar
  • 1 cup butter softened
  • ½ tsp instant coffee powder
  • pinch of salt
  • ¼ cup milk
  • ½ tsp vanilla extract

Instructions
 

  • CAKE
  • Preheat the oven to 350 degrees F.
  • Add the dry ingredients: flour white and brown sugar, baking soda, baking powder, cocoa powder and salt to a large bowl, combine well.
  • Whisk together the wet ingredients - the milk, eggs, melted butter, and vanilla.
  • In a stand mixer or using a hand mixer - mix the batter until well combined, but don't overdo it!
  • Add boiling water to the mix, and carefully blend. 
  • Add to a greased 9x13 cake pan and bake in the oven for 25-30 minutes (a toothpick should come out clean when inserted in the center).
  • Remove from the oven, and cool in the pan on a wire rack for 5 minutes, then carefully remove and cool completely.
  • Frost as desired.
  • FROSTING
  • Melt the chocolate in a microwave-safe bowl, in 30-second increments at 60% power, stirring until smooth.
  • Add the powdered sugar, coffee powder, salt, and butter to a large bowl and gently combine.
  • Add the milk, vanilla, and melted chocolate.
  • Whip until smooth.
  • Frost the cooled cake.


Notes

You may wish to use more or less powdered sugar in the frosting, depending on the consistency you prefer. For more solid frosting, use about a cup more. For silky, creamy frosting, use the amount in the recipe.
The coffee powder intensifies the chocolate flavor, but if you don't have it - leave it out!

Nutrition

Serving: 1Calories: 459kcalCarbohydrates: 65gProtein: 4gFat: 21gSaturated Fat: 12gPolyunsaturated Fat: 7gTrans Fat: 1gCholesterol: 68mgSodium: 469mgFiber: 1gSugar: 51g
Nutrition calculation is an estimation only. If you need nutritional calculations for medical reasons, please use a source that you trust.
Tried this recipe?Let us know how it was!