COOKIE CRUST:

1/2 c. butter
1/2 c. brown sugar
1 c. flour

Mix crumbly dough and pat into 8 x 8 pan. Bake at 350 degrees for 10 minutes; cool.

TOPPING:

1 c. brown sugar
2 eggs
1 tsp. vanilla
1 1/2 c. chopped nuts
1 tbsp. flour
1/4 tsp. baking powder
Salt

Mix first 3 ingredients; add remaining ingredients. Bake at 375 degrees for 20 minutes. Cut into bars.