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–+ servings
Sheet Cake

Indulge in the Best Sheet Cake You've Ever Made

Discover the ultimate sheet cake filled with rich chocolate flavors, perfect for feeding a crowd and easy to make.
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Prep Time 20 minutes
Cook Time 35 minutes
Cooling Time 15 minutes
Total Time 1 hour 10 minutes
Course Uncategorized
Cuisine American
Servings 16 slices
Calories 350 kcal

Equipment

  • 9×13-inch baking pan
  • mixing bowls
  • electric mixer
  • whisk
  • spatula
  • Saucepan

Ingredients
  

For the Cake

  • 2 cups all-purpose flour
  • 2 cups granulated sugar
  • ¾ cup unsweetened cocoa powder
  • 1 ½ teaspoons baking powder
  • 1 ½ teaspoons baking soda
  • 1 teaspoon salt
  • 1 cup buttermilk
  • ½ cup vegetable oil
  • 2 large eggs
  • 2 teaspoons vanilla extract
  • 1 cup boiling water

For the Ganache Frosting

  • 1 ½ cups heavy cream
  • 16 ounces semi-sweet chocolate
  • ¼ cup unsalted butter
  • 1 teaspoon vanilla extract
  • 1 pinch salt

For the Cream Cheese Frosting

  • 4 ounces cream cheese
  • 2 cups powdered sugar
  • ¼ cup milk
  • 1 teaspoon vanilla extract

Instructions
 

Step‑by‑Step Instructions for Hostess Sheet Cake

  • Preheat your oven to 350°F (175°C) and grease and flour a 9x13 inch baking pan.
  • Whisk together the dry ingredients in a large mixing bowl.
  • In a separate bowl, whisk together the wet ingredients until smooth.
  • Gradually mix the wet ingredients into the dry ingredients until just combined.
  • Add boiling water to the batter and stir until smooth.
  • Pour the batter into the prepared baking pan and bake for 30-35 minutes.
  • Allow the cake to cool in the pan for 10-15 minutes before transferring to a wire rack.
  • Heat heavy cream in a saucepan until it simmers, then add chopped chocolate and stir until smooth.
  • Stir in butter, vanilla extract, and salt to complete the ganache.
  • Beat cream cheese until smooth, then mix in powdered sugar.
  • Add milk and vanilla extract to the cream cheese mixture and beat until fluffy.
  • Once the cake is cool, spread the ganache evenly over the top.
  • Pipe lines of cream cheese frosting across the ganache and swirl for decoration.
  • Chill the cake for at least 30 minutes to set the frosting.
  • Optionally, sprinkle mini chocolate chips or cocoa powder on top before serving.

Notes

For best results, ensure precise ingredient measurements and let the cake cool completely before frosting.

Nutrition

Serving: 1sliceCalories: 350kcalCarbohydrates: 45gProtein: 4gFat: 18gSaturated Fat: 10gPolyunsaturated Fat: 2gMonounsaturated Fat: 4gCholesterol: 50mgSodium: 250mgPotassium: 200mgFiber: 2gSugar: 30gVitamin A: 300IUCalcium: 50mgIron: 2mg
Keyword baking, Chocolate Cake, dessert, Homemade Cake, Party Cake, Sheet Cake
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