For the Cake
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2 cups all-purpose flour
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2 cups granulated sugar
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½ teaspoon salt
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½ teaspoon baking soda
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1 cup unsalted butter
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¼ cup unsweetened cocoa powder
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1 cup Coca Cola (not diet)
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½ cup buttermilk
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2 large eggs
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1 teaspoon vanilla extract
For the Chocolate Frosting
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½ cup unsalted butter
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¼ cup unsweetened cocoa powder
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6 tablespoons Coca Cola
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3 ½ cups powdered sugar
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1 teaspoon vanilla extract
Instructions
Preheat the oven to 350°F (175°C). Grease a 9×13-inch baking pan (or jelly roll pan for thinner cake) and set aside.
Step 2: Mix Dry Ingredients
In a large bowl, whisk together the flour, sugar, salt, and baking soda until well combined.
Step 3: Heat the Coca Cola Mixture
In a saucepan over medium heat, combine the butter, cocoa powder, and Coca Cola. Stir continuously until the butter is melted and the mixture is smooth. Bring just to a gentle boil, then remove from heat.
Step 4: Combine Wet and Dry Ingredients
Pour the hot cocoa-Cola mixture over the dry ingredients and stir until smooth. Add the buttermilk, eggs, and vanilla extract. Mix until the batter is fully combined and glossy.
Step 5: Bake the Cake
Pour the batter into the prepared pan and spread evenly. Bake for 30–35 minutes, or until a toothpick inserted in the center comes out clean.
