Chocolate Sheet Cake

1/2 Cup Butter
1/2 Cup Shortening
3 Tbs Cocoa
1 Cup Water

Mix together in a pan and bring to a boil, stirring so it doesn't stick on pan.

2 Cups Sugar
1/2 Cup Buttermilk
1 Teas Cinnamon
2 Eggs, beaten
2 Cups Flour
1 Teas Baking Soda
1 Teas Vanilla
Dash of Salt

Pour liquid mixture over flour and sugar which have been sifted together. Mix Well. Add remaining ingredients and mix well. Bake 20 minutes at 375 degrees in greased and floured jelly roll pan (10 by 15 inch). Five minutes before cake is done prepare frosting.

Frosting

1/2 Cup Butter
3 Tbs Cocoa
6 Tbs Milk
4 Cups Powdered Sugar

Melt butter, add cocoa and milk. Bring to a boil. Remove from heat and add 4 cups powdered sugar, 1 teas vanilla. Mix well. Frost cake while hot. If desired, add nuts.