Dredging beef is
actually much simpler than it sounds! It simply refers to
coating beef (or other meat) with a thin coating of flour
or seasoned flour mixture, usually done by "dredging"
the meat along a plate or bowl that contains the flour. Ot
is often used to seal in juices or flavors or as a helper
to help thicken stews or soups made with the dredged beef.
It is also the
same kind of idea as Shake N Bake. Unless instructions refer
you to do it in a specific way (such as dredging one side
only) you can pour the flour mixture into a food-safe plastic
bag and shake the beef in the bag.