A batter is a wet coating made from flour, liquid, and seasonings, creating a thicker, often crispy layer when fried. A dredge is a dry coating, typically flour or breadcrumbs, that provides a lighter, more textured crust.
The key difference lies in the consistency and composition of the coating. A batter is a semi-liquid mixture, usually consisting of flour (like all-purpose, rice, or corn flour), a liquid (such as water, milk, or beer), and seasonings. The liquid hydrates the flour, creating a slurry that adheres to the food. When fried, the batter cooks into a relatively thick, often crispy crust. Think of fried chicken or tempura.
A dredge, on the other hand, is a dry coating. It typically involves coating the food in flour, cornstarch, breadcrumbs, or a combination of these. The food is simply dusted or rolled in the dry ingredient before frying. Dredging creates a thinner, more textured crust compared to battering. Examples include fried calamari or schnitzel. Sometimes, dredging involves a three-step process: flour, egg wash, and then breadcrumbs for an even thicker and more secure coating.
When dredging, pat the food dry with paper towels first. This helps the dry coating adhere better and prevents a soggy crust.