Lemon Pudding Cake
["4 egg yolks", "1/3 c. lemon juice", "1 tsp. lemon rind (optional)", "1 Tbsp. melted butter", "1 1/2 c. sugar", "1/2 c. sifted plain flour", "1/2 tsp. salt", "1 1/2 c. milk", "4 egg whites"]
["Beat and mix well the egg yolks, lemon juice, rind and butter; set aside. Mix sugar, flour and salt. Measure milk. Whip egg whites. Add sugar mixture alternately with the milk. Fold into beaten egg whites. Pour into 8-inch square pan. Place this pan in a pan of water. Bake for 45 minutes in 350\u00b0 oven. Pudding will be in the bottom of pan. Turn over when served and", "top with Cool Whip."]
["egg yolks", "lemon juice", "lemon rind", "butter", "sugar", "flour", "salt", "milk", "egg whites"]