We really enjoyed this. So much so that we decided to try to turn it into a Margarita.

45ml Reposado Tequila
25ml Giffard Ginger of the Indies
15ml Cointreau
22.5ml Lime Juice
5ml Giffard Sirop Grenade
4 drops Bob's Margarita Bitters

Maybe up the Cointreau a bit if it's missing a bit of sweet and depth or split the syrup 50:50 Grenade and Agave, but now, perhaps, we're splitting hairs.. Cheers.