Preheat your oven to 350°F. This is the perfect temperature for baking the cake evenly. Make sure it’s well-preheated before you pop your cake in.
Prepare your cake pans. You’ll need either three 9-inch round cake pans or two. Line the bottoms with waxed paper and spray the sides with cooking spray. This will help the cakes come out easily after baking.
In a large microwaveable bowl, combine the BAKER'S GERMAN'S Sweet Chocolate and water. Microwave on HIGH for 1 to 1.5 minutes, stirring after 1 minute. You want the chocolate to be almost melted. Stir until it’s completely smooth and set aside to cool.
In another bowl, mix the flour, baking soda, and salt. This will ensure that your dry ingredients are evenly distributed.
In a large mixing bowl, beat the butter and sugar with an electric mixer until the mixture is light and fluffy. This step is crucial for achieving a light texture in your cake.
Add the egg yolks, one at a time, mixing well after each addition. This helps to incorporate air into the batter, making it fluffier.
Blend in the melted chocolate along with the vanilla. Make sure these are well combined to create a rich chocolate flavor.
Gradually add the flour mixture and buttermilk, alternating between the two and beating well after each addition. This will keep your batter smooth and prevent lumps.
In a separate bowl, beat the egg whites on high speed until stiff peaks form. This is important for the airy texture of the cake.
Carefully fold the beaten egg whites into the cake batter. Be gentle to maintain the aeration you've just created.
Pour the batter into the prepared pans. If you're using three pans, divide the batter evenly. If using two pans, distribute approximately one-third of the batter into each pan. Reserve the remaining batter for cupcakes.
Bake for 30 to 35 minutes, or until a toothpick inserted in the center comes out clean. Keep an eye on your cakes to avoid overbaking.
Once baked, run a small spatula around the edges of the cakes in the pans to loosen them. This will help prevent sticking.
Let the cakes cool in the pans for about 15 minutes before transferring them to wire racks to cool completely. This is crucial before frosting your cakes.
Once completely cooled, frost with your favorite frosting, such as a delicious Coconut Pecan Frosting.