a sauce made from mint leaves, sugar, and vinegar, usually served with lamb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Examples from the Web for mint sauce
Historical Examples of mint sauce
I say, Lizzie, what on earth did you make this mint-sauce of?Mr. Punch's Book of Love
On the other hand the unmistakable bubbling note of the mint-sauce will not be heard for another month or so.