The most amazing Barolo vertical tasting took place recently in … London. Above, Jenny and Marco Marengo showing their wines to Oz Clarke at a Justerini & Brooks tasting the day afterwards, Odderos in the background. Marco, Jenny and Stefano Marengo constitute the entire team at M Marengo, and for many years from 2001, when Marco’s father died, until their son Stefano joined them, it was just the two of...