1 stick butter
1 c. brown sugar
1/2 c. white sugar
1 egg
1 tsp. vanilla
2 c. flour
1 tsp. baking soda
1 c. buttermilk
3 Heath candy bars

Mix the butter, sugars, flour and vanilla together until crumbly. Reserve 1/2 cup of the crumbs; add remainder to egg, buttermilk and soda. Put into pan (7 1/2 x 11 1/2 inches). Crush the candy bars and mix with the 1/2 cup reserved crumbs; put on top. Bake 30 minutes at 350 degrees.