Fondue (?), n. [Also erroneously Fondu.] [F. See Fondu; cf. Fondant.] 1. (Cookery) A dish made of cheese, eggs, butter, etc., often seasoned with kirsch and white wine, melted together, and usually used as a dip for pieces of bread.
[Webster 1913 Suppl.]

2. (Cookery) A dish consisting of pieces of solid food cooked in or dipped into a hot sauce; as, beef fondue.
[PJC]