1 c. butter
1/2 c. Hershey's cocoa
2 c. sugar
4 eggs
2 tsp. vanilla
2 c. flour
1 c. chopped nuts (optional)

Melt together butter and cocoa and cool. Beat together sugar, eggs, vanilla and add chocolate mixture. Add flour and nuts and beat well. Put in floured 9x13 inch pan. Bake at 350 degrees for 30-40 minutes.