Mornay sauce
type of béchamel sauce including cheese
Mornay sauce is a variation of Béchamel sauce. To make Mornay sauce, butter is added to the Béchamel sauce. Grated cheese, usually Parmesan cheese or Emmental, is also added. Egg yolk is often added as well.
![](http://up.wiki.x.io/wikipedia/commons/thumb/9/9e/Sauce_Mornay.jpg/220px-Sauce_Mornay.jpg)