1 c. buttermilk
1/2 c. butter
2 c. light brown sugar
2 eggs
2 c. all-purpose flour
1 tsp. baking soda
3 tbsp. cocoa
1 tbsp. vanilla
1/4 tsp. salt

Warm buttermilk and butter - put in bowl. Add sugar and eggs and beat well. Combine dry ingredients and sift into bowl. Mix until smooth. Stir in vanilla. Bake at 350 degrees for 25 minutes in a 9 x 14 x 2 inch pan.