Orange Pie 3

Grate the rind of one and use the juice of two large oranges. Stir together a large cupful of sugar and a heaping tablespoonful of flour; add to this the well-beaten yolks of three eggs, two tablespoonfuls of melted butter. Reserve the whites for frosting. Turn this into a pie pan lined with pie paste and bake in a quick oven. When done so as to resemble a finely baked custard, spread on the top of it the beaten whites, which must be sweetened with two tablespoonfuls of sugar; spread evenly and return to the oven and brown slightly.