"A Mornay sauce is a B\u00E9chamel sauce with shredded or grated Gruy\u00E8re cheese and egg yolk added. Some variations use different combinations of Gruy\u00E8re, Emmental cheese, or white Cheddar."@en . . . . "B\u00E9chamel sauce,Gruy\u00E8reand eggyolk" . . . "Mornay sauce"@en . . .