1/2 cup butter
2 eggs
2 cups brown sugar
1 tsp vanilla
1-1/2 cups flour
2 tsp baking powder
1/2 tsp salt
1 cup walnuts, finely chopped

Beat eggs, sugar, vanilla and butter until creamy. Stir together dry ingredients; blend into butter mixture. Stir in nuts. Spread in a greased 9x13" baking pan. Bake 25-30 minutes at 350 degrees until lightly browned. Cool completely and cut into bars.