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Old Fashioned Coca Cola Cake in a red handled casserole dish with squares on white scalloped plates and a red and white checkered napkin.

Old Fashioned Southern Chocolate Coca Cola Cake

This old fashioned Coca Cola cake may be the easiest chocolate cake ever--it doesn't even require a mixer! The tender and moist chocolatey buttermilk cake is made in a baking pan and is topped with a fudgy frosting, also flavored with the popular soda.
4.87 from 15 votes
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Course: Dessert
Cuisine: American, Southern
Prep Time: 10 minutes
Cook Time: 40 minutes
Servings: 12

Equipment

  • dry measuring cups
  • liquid measuring cup
  • measuring spoons
  • whisk
  • sifter
  • medium saucepan
  • large mixing bowl
  • 13- x 9-inch baking pan
  • rubber spatula

Ingredients

For the Coca-Cola cake:

  • 2 cups all-purpose flour
  • 2 cups granulated sugar
  • 1 teaspoon baking soda
  • 1 cup salted butter
  • 1 cup Coca Cola
  • ½ cup whole buttermilk
  • ¼ cup unsweetened cocoa powder
  • 3 large eggs
  • 2 teaspoon vanilla extract

For the chocolate fudge frosting:

  • ¾ cup salted butter
  • ¾ cup Coca Cola
  • cup unsweetened cocoa powder
  • 6 cups powdered sugar, sifted

Instructions

  • Preheat the oven to 350°F. Coat a 13- x 9-inch baking dish or baking pan with nonstick cooking spray. Combine the flour, granulated sugar, and baking soda in a large bowl.
  • Combine 1 cup of butter, 1 cup Coca Cola, the buttermilk, and ¼ cup cocoa in a medium saucepan. Cook over medium heat, whisking occasionally, until the mixture comes to a boil. Add to the flour mixture and stir until smooth.
  • Whisk in the eggs, one at a time, whisking until the yellow disappears after each addition. Whisk in the vanilla.
  • Pour the batter into the prepared pan. Bake for 32 to 35 minutes or until a toothpick inserted in the center of the cake comes out clean.
  • Meanwhile, make the frosting: Bring the butter, cola, and cocoa to a boil in a medium saucepan over medium-high heat. Remove from the heat and gradually whisk in the powdered sugar until smooth.
  • Pour the warm frosting over the hot cake. Let stand at room temperature until cooled. Cut into squares to serve.

Video

Notes

It may feel odd to do so, but you are supposed to pour warm frosting over hot cake. Do not cool the frosting before pouring onto the cake or cool the cake before pouring on the frosting. This is intentional. As the cake cools, the fudge frosting slightly soaks into the top of the cake. It also will cool into a crackly-topped glossy icing on top.