and again. Béchamel sauce Béchamel sauce is a key ingredient in many  lasagna  recipes. Béchamel sauce  ( English:  /bɛʃəˈmɛl, beɪʃəˈmɛl/ [1]   French:  [beʃamɛl] ,  Italian :  besciamella   [beʃʃaˈmɛlla] ), also known as  white sauce , is one of the  mother sauces  of  French cuisine  and is used in many