Jello Cookies
["3/4 c. shortening", "1/2 c. sugar", "1 (3 oz.) pkg. jello", "2 eggs", "1 tsp. vanilla", "1 tsp. salt", "1 tsp. baking powder", "2 1/2 c. flour", "1 c. butter or margarine", "2 c. sugar", "1 Tbsp. baking powder", "3 c. sifted cake flour", "3/4 c. milk", "6 egg whites, stiffly beaten"]
["Cream the butter and sugar with mixer, beating until light and fluffy.", "Add sifted dry ingredients alternately with milk.", "Fold in egg whites.", "Pour into 3 greased round 8 or 9-inch layer pans. Bake in moderate oven (350\u00b0) for 25 to 30 minutes, or until top springs back when lightly touched.", "Cool."]
["shortening", "sugar", "jello", "eggs", "vanilla", "salt", "baking powder", "flour", "butter", "sugar", "baking powder", "cake flour", "milk", "egg whites"]