Cathal McBride: Prosecco may be cheap, but it doesn’t have to be nasty if you choose wisely

If the world of sparkling wines was a family of brother and sisters, then Champagne would be the eldest – complex and interesting. They might well write poetry and go to Trinity College Dublin. Cava is next in line, enthralled by its older sibling but also trying to find its own identity. Then comes Pet Nat, a free spirit full of playful idiosyncrasies and always great fun at a party. Finally we have the youngest, ...