What is "bechamel sauce"

Usage examples of "bechamel sauce".

I said flour didn't I, if we need it or not just to be safe there's no earthly reason you can't make a perfectly smooth bechamel sauce with this new processed flour Lily, you can try it again tonight with, write down cauliflower yes, we haven't had cauliflower it should be quite cheap now it's that time of year after all, isn't it.

But Liir was terrified, and the cook threatened to disappear and leave the group traumatized by an inability to do a really topnotch bechamel sauce in the wilderness.