2 c. flour
2 tsp. baking powder
1 tsp. baking soda
1/2 tsp. salt
1/2 c. shortening
1/2 c. sugar
1 1/2 c. brown sugar
2 eggs, separated
1 tsp. vanilla
3 tbsp. milk
1 bag chocolate chips

Sift together flour, baking powder, soda, and salt. Cream shortening, sugar, and 1/2 cup brown sugar. Add flour mixture, 2 egg yolks, vanilla, and milk to creamed mixture. Dough will be stiff. Press into a 9 x 13 inch pan. Sprinkle with chocolate chips. Beat 2 egg whites until stiff and add remaining 1 cup brown sugar. Pour over chocolate chips. Bake at 325 degrees for 35 minutes.