SUMMER DREAMS From Hot Dog Stand, Moffats Grew Blue Mingo Restaurant Into Mecca For Fine Dining By LIBBY CUDMORE • Special to www.AllOTSEGO.com COOPERSTOWN – There are plenty of places in Otsego County to get drive-thru food. But the Blue Mingo is the only place to get boat-thru food. “On busy nights, we’ll come and serve you on your boat!” said owner Michael Moffat. “We have a lot of people who come and order while they’re out on the lake –…