Top bartender Giuseppe Gallo headed to the Goodwood Festival of Speed to show us how to create this classic vermouth-based cocktail, named due to the ingredients it contains - gin and Italian vermouth. Here we've made it with Bombay Sapphire gin, Martini Riserva Speciale Ambrato vermouth and a dash of orange bitters. Give this sophisticated sipper a try and let us know what you think. Sponsored by Bacardi.