Lemon Sponge Pie
["2 eggs, separated", "1 c. milk", "3 Tbsp. flour", "1 c. sugar", "juice and rind of lemon", "pinch of salt", "1 Tbsp. butter, melted"]
["Mix the sugar and flour and add the lemon juice and rind, slightly beaten egg yolks, butter and salt.", "Stir in the skim milk and mix well.", "Beat egg whites until stiff and fold into the first mixture.", "Pour into custard cups and bake or the sponge may also be baked in a pie shell.", "Bake at 350\u00b0 for 40 minutes."]
["eggs", "milk", "flour", "sugar", "lemon", "salt", "butter"]