The flavouring in the milk makes the sauce very aromatic and distinguishes this sauce from a plain white sauce, which might have cheese or other flavourings added to it.
Delia' shows you how to make béchamel sauce, using a mixture of butter and flour called a roux. A béchamel sauce is one of the French "mother sauces" and is a really good one to learn.
separated the components into layers and covered the whole thing with a thick layer of bechamel — the French cream sauce thickened with a roux and sometimes enriched with cheese (at which point ...
As a chef, when I picture macaroni and cheese, I think of the style I've made variations of at many restaurants — tender pasta in béchamel (a thickened French white sauce) that's been enriched ...