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Coca-cola cake in a baking dish.

Grandma’s Coca-Cola Cake

Chef Jenn
Grandma’s Coca-Cola Cake is a nostalgic, Southern-inspired dessert that’s rich, moist, and bursting with chocolate flavor. Made with Coca-Cola for extra depth and topped with a fudgy glaze, this classic sheet cake is perfect for family gatherings, potlucks, or any special occasion.
5 from 1 vote
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Prep Time 20 minutes
Baking Time 35 minutes
Total Time 55 minutes
Course Dessert
Cuisine American
Servings 12 servings
Calories 592 kcal

Ingredients
  

Coca-Cola Chocolate Cake:

  • 1 cup coca cola soda
  • ½ cup buttermilk
  • 2 teaspoons pure vanilla extract
  • 2 cups all-purpose flour
  • ¼ cup cocoa powder unsweetened
  • 1 teaspoon baking soda
  • 1 cup salted butter softened
  • 1 ¼ cups granulated sugar
  • 2 eggs
  • 2 cups marshmallows

For the icing:

  • ½ cup butter room temperature or softened
  • ⅓ cup Coca-Cola soda
  • 3 tablespoons cocoa powder unsweetened
  • 4 cups powdered sugar confectioners' sugar
  • 2 teaspoons pure vanilla extract

Instructions
 

  • Preheat your oven to 350°F. Spray a 13x9-inch baking dish with nonstick cooking spray.
  • Mix the Coca-Cola soda, buttermilk, and vanilla extract in a small bowl; set aside. It'll look nasty but don't worry about it.
  • Whisk the flour, cocoa powder, and baking soda together in a medium-sized bowl; set aside.
  • Beat the butter and sugar together in a large bowl with a hand mixer on low speed or in the bowl of your stand mixer, until combined. Add the eggs and scrape down the bowl as needed.
  • Combine the flour mixture and Coca-Cola mixture with the butter-sugar blend, mixing at medium speed until smooth. Scrape down the bowl as necessary.
  • Stir in the mini marshmallows, then pour the batter into the prepared baking pan.
  • Bake for 30–35 minutes, rotating the pan halfway through and don't worry if the marshmallows float to the top during cooking.
  • Cool the cake in the pan before frosting.

Notes

Chef Jenn’s Tips

  • Make sure the butter is softened before beating it with the sugar for a smooth batter.
  • Sift the powdered sugar before adding it to the icing to avoid lumps.
  • Don’t skip rotating the cake halfway through baking to ensure even cooking.
  • Let the icing cool slightly before pouring it over the cake to achieve a perfect, glossy finish.
  • Add a pinch of salt to the icing for a more balanced flavor.

Nutrition

Serving: 1squareCalories: 592kcalCarbohydrates: 92gProtein: 4gFat: 25gSaturated Fat: 15gPolyunsaturated Fat: 1gMonounsaturated Fat: 6gTrans Fat: 1gCholesterol: 89mgSodium: 308mgPotassium: 103mgFiber: 2gSugar: 70gVitamin A: 765IUCalcium: 31mgIron: 2mg

A Note on Nutritional Information

Nutritional information for this recipe is provided as a courtesy and is calculated based on available online ingredient information. It is only an approximate value. The accuracy of the nutritional information for any recipe on this site cannot be guaranteed.

Keyword Coca-Cola cake, Grandma’s Coca-Cola Cake
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