1 cup brown sugar
1 cup butter
1 egg yolk
1 tsp vanilla
2 cups flour
Preheat oven to 350 degrees. Cream butter and sugar well and add egg yolk and vanilla. Mix. Add flour and mix well. Pour in a greased 15*10 jellyroll pan. Bake 15 to 18 minutes. Remove from oven. Cover with 1 cup melted chocolate bits. Cut into squares.