Wiktionary
petit four
n. A small cake generally eaten at the end of a meal or served as part of a large buffet.
WordNet
petit four
n. small (individual) frosted and ornamented cake
Wikipedia
Petit four
A petit four (plural: petits fours, also known as mignardises) is a small confectionery or savoury appetizer. The name is French, petit four , meaning "small oven".
Usage examples of "petit four".
Each one, when popped, yielded candy or cold fruit or a petit four or a liqueur-filled sugar shell.