Gratin
Gratin (French: [ɡʁatɛ̃]) is a culinary technique in which a dish is topped with a browned crust, often using breadcrumbs, cheese, or egg. The term may be applied to any dish made using this method. Gratin is usually prepared in a shallow dish. A gratin is baked or cooked under an overhead grill or broiler to form a golden crust on top, and it is often served in its baking dish.
A gratin dish is a shallow oven-proof container that is commonly used to prepare gratins and similar dishes.