nosiola (or groppello bianco) is a white italian wine grape variety that is grown in the trentino region north of lake garda in the valle dei laghi. here it is used in varietal "denominazione di origine controllata" (doc) wines and as a blending component in wines such as "sorni bianco" from trento. it is also used to produce a dessert wine in the "vin santo" style from grapes that have been allowed to dry out prior to fermentation.