White sauce or Bechamel sauce is a very versatile sauce that you can use to prepare numerous tasty dishes like lasagna, baked pasta, and many fish and meat dishes.
If you would like the white sauce to be thicker add more butter and flour; if you would like it to have a more liquid consistency, add less butter and flour.
Store it in an air-tight container for up to 3 days. Whisk in a bit of milk before using the sauce.