Chocolate Halfway Bars
["1 c. sifted flour", "1/8 tsp. salt", "1/8 tsp. soda", "1/2 tsp. baking powder", "1/2 c. shortening", "1/4 c. sugar", "1/4 c. brown sugar", "1 egg, separated", "1 1/2 tsp. water", "1/2 tsp. vanilla", "1/2 pkg. semi-sweet chocolate chips", "1/2 c. brown sugar"]
["Heat oven to 375\u00b0. Grease 12 x 8 x 2-inch baking pan. Sift flour, salt, soda and baking powder. Mix shortening, white sugar and 1/4 cup brown sugar until creamy. Add egg yolk, water and vanilla; mix well. Thoroughly mix in flour mixture. Pat into dish. Top with chocolate chips. Beat egg white until stiff, then gradually beat in 1/2 cup brown sugar. Spread over chocolate chips. Bake until done, about 25 minutes. Cut while warm. Cool in pan."]
["flour", "salt", "soda", "baking powder", "shortening", "sugar", "brown sugar", "egg", "water", "vanilla", "semi-sweet chocolate chips", "brown sugar"]