Chocolate Halfway Bars
["1 c. sifted flour", "1/8 tsp. salt", "1/8 tsp. baking soda", "1/2 tsp. double-acting baking powder", "1/2 c. soft shortening", "1/4 c. granulated sugar", "3/4 c. brown sugar", "1 egg, separated", "1 1/2 tsp. water", "1/2 tsp. vanilla", "1/2 c. semi-sweet chocolate pieces"]
["Preheat oven to 375\u00b0.", "Grease 12 x 8 x 2-inch baking dish. Sift flour, salt, baking soda and baking powder.", "Mix shortening, granulated sugar and 1/4 cup brown sugar until very light and fluffy.", "Add egg yolk, water and vanilla; mix well.", "Mix in flour mixture thoroughly.", "Pat into baking dish.", "Top with chocolate pieces.", "Next, beat egg white until stiff.", "Gradually beat in 1/2 cup brown sugar.", "Spread over chocolate.", "Bake for 25 minutes or until done.", "Cut into 32 bars while warm.", "Cool in dish.", "Makes 2 2/3 dozen."]
["flour", "salt", "baking soda", "double-acting baking powder", "shortening", "granulated sugar", "brown sugar", "egg", "water", "vanilla", "semi-sweet chocolate pieces"]