1/2 c. butter
3/4 c. brown sugar
1 egg
1 tsp. vanilla
1 1/2 c. flour
1/2 tsp. baking soda
1/2 tsp. salt

Mix above. Stir in 1 cup finely chopped Heath bars (about 4 to 5). Drop teaspoon size dough on greased cookie sheet. Bake at 350 degrees for 12 to 15 minutes.