The Peninsula is already a prodigious fruit producer in the summertime. But in 1975, winemakers at Inniskillin Vineyards here also began planting vidal grapes - the primary varietal used to produce ice wine - and the region hasn't been the same since. Locals will tell you that there are also plenty of great dry wines here - pinot noir, cabernet sauvignon, chardonnay - but ever since Inniskillin started winning awards for its ice wine, the rest of the region has also begun to rapidly plant and harvest their own versions. Looked at from a global perspective, this region is to ice wine what Chicago is to deep dish.
What is ice wine? Essentially, it's when growers leave the grapes on the vines well past the usual harvest. Typically, the grapes are harvested from late November through late February. But they don't just go outside to pick when they feel like it. The temperature must hover around 14 degrees for two nights in a row before they'll pick, and when they do, it has to happen at night, when the temperature is coldest. Why do they wait this long? Because by the time December and January roll around, the grapes have not only frozen on the vine, but they've also concentrated their flavors. The result of a cold press at this time of the year means an intensely sweet, yet balanced acidity; a complex wine without making you cringe. While vidal is the main player here in the ice wine category, I've also seen riesling, cabernet franc, cabernet sauvignon and even gewurtztraminer ice wines, most of which, incidentally, are aged in stainless steel. One of the reasons the wine is so expensive is both its low-yield (grapes shrivel, fall to the ground or dehydrate) and also because it's incredibly labor-intensive: the vines must be wrapped in netting to protect them from the ravenous birds, and then must be uncovered and hand-picked at 2 or 3 a.m.
The wines are perfectly-suited to complement dessert, much as French sauternes or Hungarian tokajis do. At the Inniskillin vineyard, I tasted a sublime '07 vidal ice wine that had been aged in French oak, smelled like tropical fruit and tasted as if liquid apricots and pineapples were dancing on my tongue and down my throat. Oh, if I only had a handful of sweet madeleines or an apricot charlotte or an autumnal fruit tart to taste along with it! These wines are fine to sip by themselves - although one of the rieslings I tasted from the Konzelmann vineyards came off as almost cloyingly sweet, too overpowering; I would prefer sipping them with either a suitable dessert, a cheese course or even some slightly spicy Thai food.
In Chicago, here's what I found for labels and prices:
Inniskillin in 375 ml (half bottles)
Cabernet Franc (red grape) - $89.99
Vidal Grape (white grape) - $49.99
Riesling (white grape) - $69.99
Jackson-Triggs (187 ml bottles)
Vidal Grape - $19.99
Mission Hill (currently out of stock)
Chardonnay - $23.99
SLC (Select Lot Collection) Riesling - $24.99
Wine Discount Center (Only Barrington location has ice wines in stock)
Inniskillin (375 ml) riesling - $67.99