"A sauce boat, gravy boat, or saucière is a boat-shaped pitcher in which sauce or gravy is served. It often sits on a matching plate, sometimes ...
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attached to the pitcher, to catch dripping sauce.
Some gravy boats also function as gravy separators, with a spout that pours from the bottom of the container, thus leaving any surface-floating fat in the container." - (en.wikipedia.org 08.04.2021)