1/2 c. butter
1 c. sugar
1 egg
1/4 tsp. baking powder
1/4 tsp. salt
2 c. flour

Cream butter and sugar. Add beaten egg. Add dry ingredients. Pat into greased 13 x 9 inch pan.

TOPPING:

3 egg whites, beaten stiff
1 tsp. vanilla
1 1/2 c. brown sugar, packed
1/2 c. nuts

Pour topping over first layer. Bake at 350 degrees for 30 minutes.