By Lenn Thompson, Editor-in-Chief I'm intrigued by the malbec grape's potential on the North Fork. It seems to do quite well here and makes some great wines. In fact, it may only be held back by the limited amount that is planted and grown, as most growers only have a small bit planted for use in blending. Malbec bottled on its own is a relatively new thing on Long Island. The first one I remember seeing was from 2004. But, Wineries like Macari Vineyards and Raphael have done some really nice varietal bottlings that both show typical malbec character and…