LENTILS WITH ONIONS

Wash the lentils, put to cook in saucepan with plenty of cold water, and boil till tender; when soft, turn them into a fine colander, and drain thoroughly, saving the water they were cooked in. Peel the onions, cut into thin slices, put in a flat stew-pan with a lump of butter, or a little olive oil, and fry. Put the lentils in the onions and add salt to taste. Moisten with a little of the broth drained from the lentils and allow them to simmer at the side of the fire. Serve.