Texas Chocolate Sheet Cake

Sift together in large bowl:
2 cups sugar
2 cups flour

Mix in saucepan and bring to boil:
1 cube margarine
½ cup shortening
4 TBSP. cocoa
1 cup water
Pour boiled mixture over dry ingredients and mix.

Add and mix well:
½ cup buttermilk
2 eggs
1 tsp. soda
1 tsp. cinnamon
1 tsp. vanilla
Bake in greased 13x9 or 11x17 pan, at 400 for 20 minutes.

ICING. Start 5 minutes before cake is done. Melt and bring to boil:
1 cube margarine
4 TBSP. cocoa
6 TBSP. milk

After bringing to boil add:
1 box of powdered sugar
1 tsp. vanilla
1 cup pecans, chopped.

Mix and spread on cake while warm.