Brocho before eating this: Shehakol Niyeh Bedvoro

(unless there is a majority of wine, where it would be Borei Pri Hagaphen)

Brocho after eating the proper shiur of this: Borei Nefashos

(unless there is a majority of wine, where it would be Al Hagephen)

Source: The Laws of B'rachos (page 378)