sauce Robert
noun1
A sauce prepared from chopped onions and mustard.
- Adelaide was too quick-sighted not to perceive that Miss Arundel, when she first saw her talking to Lorraine, wore a very different air from Miss Arundel listening to Merton; and a rival was the sauce Robert, which would have made her not eat, but flirt with her grandfather.1831, L[etitia] E[lizabeth] L[andon], chapter XXIII, in Romance and Reality. […], volume I, London: Henry Colburn and Richard Bentley, […], →OCLC, page 305: