Bread sauce (still popular in British cuisine) has a very different texture to Béchamel sauce. And unlike bread sauce, making Béchamel sauce is not at all obvio

Bread sauce (still popular in British cuisine) has a very different texture to Béchamel sauce. And unlike bread sauce, making Béchamel sauce is not at all obvious. If you gave somebody who'd never heard of it some flour, butter and milk, and told them to combine them into a smooth sauce, they would probably fail. Béchamel sauce was a real innovation.