Béchamel is a classic white sauce made from a simple mixture of butter, flour, and milk. It serves as a base for many dishes, adding creaminess and richness. Often referred to as one of the "mother sauces" in French cuisine, it can be used in recipes like lasagna, macaroni and cheese, and creamy soups. To make béchamel, you start by melting butter in a pan, then whisk in flour to create a roux. Gradually, milk is added while stirring continuously to avoid lumps. Once thickened, it can be seasoned with salt, pepper, and nutmeg for extra flavor, making it a versatile ingredient in cooking.