1 stick butter
1 box brown sugar
2 eggs
2 tsp. vanilla
2 c. flour
2 tsp. baking powder
3/4 to 1 c. chopped nuts
1 (12 oz.) bag butterscotch chips or peanut butter chips, or chocolate chips; optional

Melt butter and pour over brown sugar; add eggs and vanilla; beat well. Add flour, baking powder, and nuts. Add chips if desired. Bake in greased and floured 9 x 13 pan at 350 degrees for 30 minutes. Cut into squares as soon as you remove from oven.