Reposado rather than banco tequila, and a rosso alla vaniglia vermouth rather than a rosso vermouth, help round this tasty riff on a classic gin-based...
Just tried with Teremana Anejo, Antica Formula and Montenegro. The Teremana Anejo is so vanilla sweet from the aging it's almost like a Bourbon and it complements the Antica so well. The Montenegro adds a candy shop complexity.