Chewy Toffee Bars

Cream together:
1 ½ c butter or margarine
1 ½ c brown sugar
2 eggs

Add:
2 ¼ c flour
¾ tsp baking powder
1 ½ tsp vanilla

Spread on cookie sheet. Bake @ 350 degrees for 15-20 minutes (until lightly golden and toothpick comes out clean). Remove from oven and put 6 Hershey candy bars on top immediately. Spread when melted. Top with nuts (if desired).