Lion House Texas Sheet Cake

Ingredients

1/2 C butter, softened
1/2 C shortening, softened
4 T cocoa
1 C water
2 C flour
2 C sugar
1/2 C buttermilk
1 tsp baking soda
1 tsp vanilla
2 eggs, beaten
Dash salt

Frosting:
1/2 C butter
4 T cocoa
1 tsp vanilla
6 T milk
4 C powdered sugar
1 C chopped nuts

Directions
Mix together butter, shortening, cocoa, and water; bring to boil.  Pour over flour and sugar, which have been sifted together.  Mix well.  Add buttermilk, soda, vanilla, eggs and salt and mix well.  Bake 20 minutes at 400 degrees F in greased and floured jelly roll pan (10 x 15 inch).  Five minutes before cake is done, prepare frosting.

Melt butter; add cocoa, vanilla and milk, and bring to a boil.  Remove from heat and add powdered sugar and nuts.  Mix well.  Frost cake while hot.