Cream: 5 pounds butter
15 cups sugar
Mix: 10 tablespoons espresso
10 tablespoons hot water
Add: 20 eggs
Sift: 18 cups flour
5 cups cocoa powder
10 tablespoons baking soda
10 tablespoons baking powder
10 tablespoons cinnamon
Add: 15 cups buttermilk
Make as per cake making instructions. As with most professional recipes, they expect that you will know the method.
Fill round cake tins 1/4 full. Bake at 350 for 30 minutes.