Unsalted butter: The rich base of the cake, creating a tender, buttery texture and flavor. Granulated sugar: Sweetens the cake. Large eggs: Binds the cake batter. All-purpose flour: Gives the cake its ...

Step 1. Make syrup: Start by reducing 4 cups of Coca-Cola to 1/3 cup in a medium pot. You'll set this aside to cool when ready, but in the meantime, start the cake. Step 2. Make cake batter: Mix to ...