Lemon Sponge Pudding
["1 c. sugar", "1/4 c. flour", "1/8 tsp. salt", "2 Tbsp. margarine", "4 to 5 Tbsp. lemon juice", "1 tsp. grated lemon peel", "2 egg yolks, beaten", "1 c. milk", "2 egg whites, stiffly beaten"]
["Combine sugar, flour, salt and margarine.", "Add lemon juice and lemon peel.", "Stir in egg yolks and milk.", "Fold in egg whites. Pour into greased 1 1/2-quart shallow casserole.", "Put casserole in pan with 1 inch water surrounding it.", "Bakes at 325\u00b0 for 1 hour."]
["sugar", "flour", "salt", "margarine", "lemon juice", "egg yolks", "milk", "egg whites"]