What if Beaujolais and red Burgundy had a love child? Megan Krigbaum on Passetoutgrain, a historic but little-known appellation in Burgundy responsible for high-quality, affordable wines made from gamay and pinot noir. PUNCH: APRIL 19, 2017  story: MEGAN KRIGBAUM  photo: LIZZIE MUNRO Could there be any wine more ideal than one with the pedigree of