Besciamella, known more commonly by the French "bechemel," is a creamy white sauce made with flour, butter, and milk. It is a staple in traditional lasagna, but in American kitchens, it is often replaced by ricotta cheese. The besciamella and Bolognese sauce can be prepared a day or two ahead and refrigerated until assembly.
This and other great recipes are from The Culinary Institute of America's cookbook, Italian Cooking at Home.
This recipe makes 6–8 servings.