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Chocolate Sheet Cake Recipe

Lil' Luna
Our favorite chocolate sheet cake recipe. It's simple, moist, delicious and serves a lot making it our go-to party dessert - perfect with ice cream.
5 from 28 votes
Prep Time 15 mins
Cook Time 20 mins
Total Time 35 mins
Course Dessert
Cuisine American
Servings 24
Calories 223 kcal



  • 2 cups all-purpose flour
  • 2 cups sugar
  • ½ cup unsweetened cocoa powder
  • 1 tablespoon baking soda
  • 1 teaspoon salt
  • 2 eggs
  • 1 cup buttermilk
  • 1 cup hot water
  • cup vegetable oil


  • ½ cup unsalted butter
  • 2 tablespoons unsweetened cocoa powder
  • 5 tablespoons milk
  • 1 teaspoon vanilla extract
  • cups powdered sugar sifted
  • sprinkles for topping (optional)


  • Preheat the oven to 350 degrees F.
  • To make the cake, mix flour, sugar, cocoa powder, baking soda and salt in a large bowl.
  • Add eggs, buttermilk, hot water and oil and beat together with a hand mixer until combined and smooth (it should be runny). Pour into a greased 11-x-15-inch baking dish.
  • Bake for 20 minutes, or until a toothpick inserted in the middle comes out clean.
  • To make the frosting, melt butter in a medium pot over low heat. Add cocoa powder, milk and vanilla and whisk until smooth. Add powdered sugar and whisk until smooth.
  • Remove from the heat and pour over the warm cake. Spread frosting quickly and add sprinkles right away, since frosting sets up quickly.



Make Ahead: Make the cake as instructed, but do not add frosting. Once cool, cover with plastic wrap and store on the counter for up to 24 hours. When ready to serve, make frosting and add it to the cake.
Feed a Crowd: This cake makes a lot, so it has become a staple for get-togethers and birthday parties in our house. We change out the sprinkles based on the occasion and usually serve it with different kinds of ice cream. If you like chopped pecans, you can add those too by mixing them into the frosting before spreading it onto the cake.


Serving: 1sliceCalories: 223kcalCarbohydrates: 44gProtein: 2gFat: 5gSaturated Fat: 3gPolyunsaturated Fat: 0.3gMonounsaturated Fat: 1gTrans Fat: 0.2gCholesterol: 25mgSodium: 253mgPotassium: 70mgFiber: 1gSugar: 34gVitamin A: 160IUCalcium: 24mgIron: 1mg
Keyword Chocolate Sheet Cake
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