1 2/3 c. all-purpose flour
1 1/2 c. sugar
2/3 c. cocoa
1 1/2 tsp. baking soda
1 tsp. salt
1 1/2 c. buttermilk
1/2 c. shortening
2 eggs
1 tsp. vanilla

Measure all ingredients into a large bowl, blend on low speed then beat on high speed 3 minutes. Bake in 9"x13" greased and floured pan for approximately 30 to 35 minutes at 350 degrees.