Here's how to make the perfect Christmas Day G&T. Remove this bauble from the tree and pour the contents of the Perfect Measure sample into a glass. Add ice and chilled tonic, then raid your Christmas stocking for the citrus garnish - Portbello Road recommend grapefruit, in case you want to tell Santa in advance. Portobello Road No.171 is a classic London Dry Gin made from nine botanicals. It was created by the team at Notting Hill's Portobello Star, home of the Ginstitute, which is based at 171 Portobello Road.