Sunshine Cake
["5 egg yolks", "1/2 c. cold water", "1 1/2 c. sugar", "1 1/2 c. flour", "1 tsp. baking powder", "1/4 tsp. salt", "1 tsp. vanilla", "5 egg whites", "3/4 tsp. cream of tartar"]
["Beat yolks till thick and lemon color.", "Add water and beat. Add sugar gradually and beat thoroughly.", "Add flour, sifted with baking powder and salt.", "Mix until smooth; add vanilla.", "Beat egg whites till foamy; add cream of tartar and beat until stiff.", "Fold into cake batter.", "Bake in an ungreased tube pan at 325\u00b0for 50 to 60 minutes.", "Invert pan to cool.", "Remove cake and frost."]
["egg yolks", "cold water", "sugar", "flour", "baking powder", "salt", "vanilla", "egg whites", "cream of tartar"]