Mousseline Sauce Recipe ingredients

To prepare this Mousseline Sauce Recipe, first beat a tablespoon of butter to a cream; add the yolks of three eggs, one at a time, then add three tablespoons of lemon juice, half a teaspoon of salt and a dash of cayenne. Cook over hot water until the sauce thickens, then add another tablespoon of butter and half a cup of sweet cream. When the sauce is hot, serve. It should be quite thick and frothy.