Winemaker Christopher Tracy makes some of Long Island’s most unique wines. Being unique isn’t enough — a wine has to be delicious to earn my attention. Channing Daughers Winery 2010 Mosaico ($29) is a field blend — from part of the winery’s Sylvanus Vineyard in Bridgehampton — that was fermented with ambient yeast. Made up of 32% pinot grigio, 29% chardonnay, 14% sauvignon blanc, 10% muscat ottonel, 7% tocai friulano and 8% gewurztraminer that was fermented mostly in stainless steel (86%) with 14% fermented in new French oak. The muscat and gewurztraminer were fermented on their skins and blended…