In 1668, Dom Pérignon is said to have discovered how to make sparkling wine; today his technique is used the world over, although Champagne continues to make some of the finest. France’s most northerly wine region, Champagne is now home to 15,000 growers and 290 ‘houses’. A blend of grape varieties is usually required: white Chardonnay to add fruit and elegance, and two reds – Pinot Noir and Pinot Meunier – to provide body and backbone.