Onion Sauce (Called also Soubise Sauce) Recipe ingredients

To prepare this Onion Sauce (Called also Soubise Sauce) Recipe, first cook together until smooth 2 tablespoonfuls of butter and 2 of flour. Stir in slowly 1 cupful of hot stock. Add 2 or 3 onions that have been sliced and cooked in salted water for fifteen minutes. Season with salt and cayenne, and add last 1/2 cup of hot cream.