The principles and techniques for making a velouté are nearly identical to those for béchamel. For instance, the thickness of the velouté depends on the amount of roux used with the stock. It's as simple as that and incredibly effective. Velouté sauces offer versatility, as you can use various cooking stocks to impart specific flavors. Chicken stock yields a chicken velouté, fish stock results in a fish velouté, and so forth.