Petit Manseng (peh-TEET man-SANG)

Primarily used in the sweet wine Jurançon, a rare specialty of southwestern France. Commonly, the grapes are left on the vine until they are shriveled and their sugar is concentrated, although the noble mold botrytis cinerea may also take hold. Also known as izakiriot ttipi in Spain’s Basque region, where it is one of the varieties used to make the tart dry white Txakoli.