Cake:

1. Preheat the oven to 350 degrees F.
2. Grease and flour two nine-inch baking pans with baking flour.
3. In a stand mixer with the paddle attachment, cream the butter, sugar, and eggs until fluffy (about 5 minutes).
4. In a separate bowl, blend the baking flour, cocoa, baking powder, baking soda, and salt.
5. Using a slow speed, slowly add the dry ingredients to the stand mixer, alternating with the additions of water and vanilla.
6. Divide the batter into the 2 pans and bake for about 35 minutes, until a toothpick comes out clean.
7. Let the cakes sit for a few minutes, then remove them from the pans to cool completely.

Frosting:

1. Cream the butter.
2. Add the confectioner’s sugar, cocoa, milk or heavy cream, and vanilla, then continue beating until fluffy. The mixture should be very creamy.
3. If the mixture is not creamy, add a bit more butter and cream and continue to beat until blended and creamy.

Assembly:

1. Once the cakes are fully cool, trim the tops to make even layers. If you want even more layers, you can cut the cakes in half to make 4 layers total.
2. Place the first layer down on a cake turntable or plate and spread 1/3 of the chocolate frosting on top.
3. Place the second layer of cake on top of the frosted cake.
4. Ice the top and sides of the cake with the remainder of the chocolate frosting.
5. Decorate the cake as desired by piping a border or design with leftover chocolate frosting, adding fresh fruit/sprinkles, or leave it rustic!
6. Serve and enjoy!