The Collaborative International Dictionary
Bonne bouche \Bonne" bouche"\; pl. Bonnes bouches. [F. bon, fem. bonne, good + bouche mouth.] A delicious morsel or mouthful; a tidbit.
Wiktionary
n. A gourmet titbit.
Wikipedia
Bonne Bouche is an aged goat's milk cheese made by Vermont Creamery, of Websterville, Vermont, since 2001. "Bonne bouche" is French for "tasty bite".
Made with fresh pasteurized goats’ milk from Vermont and Canadian farms, the curd is hand ladled, sprinkled with poplar ash, and aged to develop a rind. This cheese develops a wrinkled, geotrichum-rind also known as a "geo" rind. After aging for ten days at the creamery, the cheeses are packaged and sent to market where they will continue to age up to eighty days. As a young cheese, the rind has a pleasant yeast flavor and creamy interior becoming softer and more piquant with time.
Usage examples of "bonne bouche".
Evidently he was saving his own coup for a bonne bouche, and, at length, with pardonable satisfaction, he produced it.
You did not see anything else on your way down, I suppose, Just for the bonne bouche, as they say, ha, ha?