When reducing demi-glace, what does nappe refer to?

Study for the Culinary I Stocks, Sauces, and Soups Exam. Dive into flashcards and multiple choice questions, each with hints and explanations. Equip yourself for the final day!

Napée describes the sauce’s ability to coat the back of a spoon and leave a thin film that clings and runs off slowly. In reducing demi-glace, aiming for nappe means you’ve reached the right viscosity—thick enough to stay on the spoon and coat surfaces, yet not so thick it won’t pour. Check by dipping a spoon: when you pull it out, the sauce should leave a smooth film that coats the spoon and drips off slowly. If it forms a heavy gel, that signals excessive thickening or cooling, not the proper nappe; if it becomes completely clear, it lacks body; and while a shiny surface can look appealing, that gloss alone doesn’t indicate the coating texture nappe describes.