Cream a cup of sugar with a tablespoon butter. Dissolve a large tablespoon cornstarch in a half cup cold water and stir into a cup boiling water. Stir until smooth, then mix with the sugar and butter and set aside to cool. Add to it then the juice and grated rind of a large lemon, and one egg beaten light. Turn into a pie plate lined with good pastry and bake.
Make a meringue of the beaten whites of two eggs, whipped stiff with a tablespoon sugar, and when the pie is done spread the meringue over it brown lightly, and serve the pie cold.