LENTILS EGYPTIAN STYLE

Wash 2 cups of lentils, soak them two or three hours, and drain them before using. Put them into boiling water well salted, cook until tender, about forty minutes, then drain again. Put 2 tablespoons of butter into a saucepan, and when melted add 1 large onion finely chopped; cook over a very slow fire for ten minutes, then add the lentils and 2 scant cups of boiled rice, and stir all together with a large fork until very hot; dredge well with salt and pepper before serving.