(CBSNews) - Every year at the Casa Larga Vineyards in the Finger Lakes district of New York, some grapes are intentionally left to freeze on the vine. When harvested, they will become the coveted delicacy called ice wine -- a desert drink with origins dating back to 18th century Germany. 

Although most of the world's ice wine is made in Canada, vineyards in the U.S. are now getting picked as among the best, reports CBS News' Don Dahler.  

"It's the most awarded product that we have. It's unique. It draws us a lot of attention," said Casa Larga's Andrea Colaruotolo O'Neil. "The ice wine started as, actually, I was in the wine shop on the tasting bar and I had a lot of people requesting those products and I had said to my dad and my brother, 'You know, we should go find some winery that makes this and bring it in. And they said, 'Oh no, we're gonna make our own.""

According to O'Neil, the ice wine grapes require a lot more manual labor than traditional wine.