Pound Cake
["1/2 lb. butter", "3 c. flour, mixed with 3 tsp. baking powder", "1 c. milk or orange juice", "2 c. sugar", "2 tsp. vanilla", "rind of 1 big lemon", "6 eggs, separated"]
["Cream egg yolks, sugar and butter.", "Put in other ingredients. Whip egg whites to snow and then blend carefully with batter. Bake 1 to 1 1/2 hours at 350\u00b0 until toothpick comes out clean."]
["butter", "flour", "milk", "sugar", "vanilla", "eggs"]