au gratin

[oh graht-n, oh grat-n, aw graht-n, aw grat-n; French oh gra-tan]
adjective Cookery.
  1. cooked or baked with a topping of either browned bread crumbs and butter or grated cheese, or with both.

Origin of au gratin

1800–10; < French: literally, with the scraping, i.e., the burnt part
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for au gratin

au gratin

adjective
  1. covered and cooked with browned breadcrumbs and sometimes cheeseAlso: gratinated

Word Origin for au gratin

French, literally: with the grating
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012