Olive Garden's Chocolate Lasagna

THE CAKE:
6 cups cake flour
5 1/4 cups sugar
2 1/4 cups hershey cocoa
2 tablespoons baking soda
4 1/2 cups milk
1 1/2 cups butter
12 large eggs
1 tablespoon vanilla extract
THE BUTTER CREAM:
2/3 cup water
4 tablespoons meringue powder
12 cups sifted confectioners' sugar
1 1/4 cups shortening
3/4 teaspoon salt
1 teaspoon clear almond extract
1 teaspoon clear vanilla extract
1 teaspoon colorless butter flavoring

10-12 servings