dredge
Coat a piece of food (often meat) in a dry ingredient, usually flour or breadcrumbs, before frying or baking -- creates a crust and helps browning.
How to do it
Dry the ingredient first, and season it if you like. Put the dredging mixture in a shallow dish, coat every exposed surface, then shake or tap off the excess -- a dredge should be a thin, even coating, not a thick layer of loose flour clinging on. Cook reasonably soon after dredging; if flour-coated food sits too long, moisture from the ingredient hydrates the coating unevenly and leaves gummy patches. For a heavier breading, use the classic three-stage sequence: flour, then egg, then breadcrumbs -- the flour gives the egg something dry to grip, and the egg then acts as glue for the crumbs.
Common pitfalls
- Food that's too wet going in -- the coating turns pasty instead of crisp.
- Too much flour left on -- loose flour burns in the pan and leaves the crust chalky.
- Oil that isn't hot enough -- the coating soaks up excess fat and stays pale.
- Oil that's too hot -- the outside burns before the inside is cooked through.
- Moving the food too soon -- a developing crust needs a few undisturbed minutes to set.
Why it works
A dry, starchy coating changes the surface conditions of the food underneath it. Flour and starch absorb some surface moisture and form a thin layer that browns readily, promoting both crispness and Maillard browning. As it cooks, the starch in the coating also gelatinizes -- the granules absorb water and swell -- which is what makes the crust hold together as one piece rather than flaking off in crumbs. The barrier isn't waterproof, but it changes how fast moisture moves in and out of the surface.
Equipment
A broad, shallow bowl, pie plate, or tray makes coating easy. For pan-frying, a heavy skillet that holds its heat well helps a lot -- cast iron and heavy stainless steel are both excellent. Tongs work for larger pieces, though hands often give better control during the actual dredging step; if using a multi-stage breading station, keep one hand for wet ingredients and one for dry so your fingers don't end up breaded too.