By Lenn Thompson, Executive Editor Sparkling riesling isn’t new in the Finger Lakes. A handful of wineries have been making it for years and a couple years ago, one even won the Governor’s Cup. Last fall, Atwater Estate Vineyards became the latest winery to make sparkling riesling, adding Riesling Bubble to its portfolio. Off-dry and force-carbonated, it also features modern packaging that definitely stands out on a store shelf (my picture doesn’t do it justice) and is closed with a crown cap rather than a cork. A fruity nose shows ripe peach, candied green apple and hints of mint syrup.…