Best Chocolate Cake Recipe (9x13 Recipe)

User Reviews

5

211 reviews
Excellent
  • Prep Time

    10 mins

  • Cook Time

    30 mins

  • Total Time

    40 mins

  • Servings

    24 servings

  • Calories

    267 kcal

  • Course

    Dessert

  • Cuisine

    American

Best Chocolate Cake Recipe (9x13 Recipe)

This Best Chocolate Cake Recipe is a moist, rich chocolate cake baked in a 9x13 pan topped with a smooth chocolate buttercream frosting. The cake uses cocoa powder, espresso powder, and boiling water for a deep chocolate flavor and tender crumb, while baking powder and baking soda provide leavening. The frosting combines cocoa powder, butter, sugar, milk, and vanilla for a creamy, spreadable finish that complements the cake's texture.

Description

The cake batter starts by whisking together dry ingredients including flour, sugar, cocoa powder, baking powder, baking soda, salt, and espresso powder, which enhances the chocolate flavor subtly. Milk (which can be buttermilk, whole milk, or coconut milk), vegetable oil, eggs, and vanilla extract are added and mixed to combine, followed by stirring in boiling water carefully to create a thin batter that helps the cake stay moist. Baking in a prepared 9x13 dish at 350°F for 30 to 35 minutes yields a tender crumb that is moist yet set, tested by a clean toothpick. The chocolate buttercream frosting is made by mixing cocoa powder with softened butter, gradually adding confectioners’ sugar, milk, vanilla, and espresso powder to a smooth consistency. This frosting is spread over the cooled cake to create a soft, rich chocolate layer that balances the cake's density. The recipe has been updated with metric measurements to assist precise baking.

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Ingredients

Servings

Chocolate Cake Recipe (9x13 Recipe)

  • 2 cups all-purpose flour
  • 2 cups granulated sugar
  • 3/4 /4 cup cocoa powder unsweetened
  • 2 teaspoons baking powder
  • 1 1/2 /2 teaspoons baking soda
  • 1 teaspoon kosher salt
  • 1 teaspoon espresso powder
  • 1 cup buttermilk or whole milk or coconut milk
  • 1/2 /2 cup vegetable oil
  • 2 large egg
  • 2 teaspoons vanilla extract
  • 1 cup water boiling

Chocolate Buttercream Frosting (9x13 Recipe)

  • 1/2 /2 cup cocoa powder unsweetened
  • 3/4 /4 cup butter softened
  • 2 1/2 /2 cups confectioners' sugar
  • 1/4 /4 cup milk
  • 1 teaspoon vanilla extract
  • 1/4 /4 teaspoon espresso powder

Instructions

  1. Preheat oven to 350º F. Prepare one 9x13 baking dish by brushing with homemade chocolate cake pan release (chocolate cake goop), spraying with baking spray or buttering and lightly flouring.
  2. Whisk together flour, sugar, cocoa, baking powder, baking soda, salt and espresso powder to a large mixing bowl.
  3. Add milk, vegetable oil, eggs, and vanilla to flour mixture and mix together until well combined. Carefully stir the boiling water into the cake batter and pour into the prepared 9x13 dish.
  4. Bake for 30-35 minutes, until a toothpick or cake tester inserted in the center comes out clean. You can follow my tips for how to tell when your cake is done.
  5. Remove from the oven and allow to cool completely.

Chocolate Buttercream Frosting (9x13 Recipe)

  1. Add cocoa to a large bowl or bowl of stand mixer. Whisk through to remove any lumps.
  2. Add the butter and cream together butter and cocoa powder until well-combined.
  3. Add sugar and milk to cocoa mixture by adding 1 cup of sugar followed by about a tablespoon of milk. After each addition has been combined, turn mixer onto a high speed for about a minute. Repeat until all sugar and milk have been added.
  4. Add vanilla extract and espresso powder and combine well.
  5. If frosting appears too dry, add more milk, a tablespoon at a time until it reaches the right consistency. If it appears to wet and does not hold its form, add more confectioner’s sugar, a tablespoon at a time until it reaches the right consistency.
  6. Spread the frosting on top of the cooled cake. Cover and keep on the counter for up to 3 days for best taste.

Notes

  • Metric measurements have been added for accuracy in baking.
  • This recipe is based on a 9x13 pan, approximately 33 x 23 cm.
  • The recipe can use buttermilk, whole milk, or coconut milk according to preference or availability.
  • Espresso powder enhances chocolate flavor subtly without imparting a coffee taste.
  • Ensure the cake is fully cooled before frosting for best results.

Nutrition Information

Show Details
Calories 267kcal (13%) Carbohydrates 41g (14%) Protein 3g (6%) Fat 12g (18%) Saturated Fat 5g (25%) Polyunsaturated Fat 3g (18%) Monounsaturated Fat 3g (15%) Trans Fat 0.2g (10%) Cholesterol 32mg (11%) Sodium 224mg (9%) Potassium 143mg (3%) Fiber 2g (8%) Sugar 30g (60%) Vitamin A 220IU (4%) Calcium 42mg (4%) Iron 1mg (6%)

Nutrition Facts

Serving: 24servings

Amount Per Serving

Calories 267 kcal

% Daily Value*

Calories 267kcal 13%
Carbohydrates 41g 14%
Protein 3g 6%
Fat 12g 18%
Saturated Fat 5g 25%
Polyunsaturated Fat 3g 18%
Monounsaturated Fat 3g 15%
Trans Fat 0.2g 10%
Cholesterol 32mg 11%
Sodium 224mg 9%
Potassium 143mg 3%
Fiber 2g 8%
Sugar 30g 60%
Vitamin A 220IU 4%
Calcium 42mg 4%
Iron 1mg 6%

* Percent Daily Values are based on a 2,000 calorie diet.

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5

211 reviews
Excellent

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