brown sauce

noun3

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

   • HP Sauce is a popular variety of brown sauce.
3. •
   Gravy.

   • He put brown sauce on the mashed potatoes.