brown sauce

brown sauce (countable and uncountable, plural brown sauces)

1. A sauce made by the addition of stock to a heated and browned mixture of butter and flour.
2. Gravy
3. (Britain) Any of many brands of bottled sauce based on malt vinegar, fruit and spices.

   HP Sauce is a popular variety of brown sauce.

• (sauce made with stock): Madeira sauce

• white sauce