Orange Cake
["2 c. sugar", "2 tsp. baking powder", "4 eggs", "2 c. flour", "1/4 lb. butter", "juice and rind of 1 orange", "2/3 c. milk"]
["Cream butter and sugar.", "Add egg yolks, milk and flour.", "Add other ingredients.", "Fold in egg whites (beaten well).", "Bake at 350\u00b0 until done."]
["sugar", "baking powder", "eggs", "flour", "butter", "orange", "milk"]