20 Minute Chocolate Cake

aka Sheet Cake

1/2 c margarine
1/4 c cocoa
1 c water
2 c flour
2 c sugar
1/2 c buttermilk
2 eggs
1 tsp baking soda
1/2 tsp salt
1 tsp cinnamon
1 tsp vanilla

Heat oven to 400 degrees.  Grease and flour 10x15 sheet pan.  Combine margarine, cocoa and water in saucepan.  Bring to a boil; remove from heat.  Sift flour and sugar into large mixer bowl.  Add chocolate mixture and beat at medium speed until blended.  Continue beating while adding buttermilk, eggs, soda, salt, cinnamon and vanilla.  Pour into prepared pan and bake in preheated oven for only 20 minutes.  (Cake may not appear to be done, but it is.)  Remove from oven, let cake remain in pan and frost with Cocoa Icing while cake is still hot.  Allow cake to cool thoroughly before cutting.

Cocoa Icing
1 box (1 lb.) powdered sugar, sifted
1/2 c margarine, melted
1/4 c cocoa
6 TBS milk
1 tsp vanilla
1 c chopped pecans (optional)
Combine sifted powdered sugar, margarine, cocoa and milk; mix well.  Stir in vanilla and pecans.  Spread on cake WHILE HOT.  makes enough icing to frost 10x15 sheet cake.

NOTE:  I'm not tagging this with any one person's name because it's the sheet cake that everybody makes or has made.