the pièce de résistance

the pièce de résistance

1. The most outstanding, remarkable, or prized achievement, accomplishment, aspect, event, etc., in a given series or group. Mr. Reynolds has an impressive gallery, but I'm told that his latest sculpture will be the pièce de résistance.
2. The principal or featured dish in a meal; the entreé. Primarily heard in UK. And now for the pièce de résistance: paupiettes of black sole, served with asparagus spears and a rich consommé.
See also: DE, piece, resistance