Fudge Cake (Johnny Cash'S Mother'S Recipe) - cooking recipe

Ingredients

margarine, 1 cube (I have no idea how much a cube is, but that's what the recipe says)
1 cup water
1/2 cup shortening
4 tablespoons cocoa
2 cups flour
2 cups sugar
2 eggs
1 teaspoon baking soda
1 teaspoon cinnamon
1/2 cup buttermilk
1 teaspoon vanilla

Preparation

Bring to a boil the margarine, water, shortening and cocoa; set aside to cool.
In another bowl, combine flour and sugar.
When chocolate mixture has cooled, add the eggs, baking soda, cinnamon, buttermilk and vanilla.
Bake in greased and floured pan in 350 degree oven until done.***I have no idea how long that might be.