30ml Dom Julio
20ml Agave Syrup
30ml Lime Juice
Half a Blackberry
2 Fresh Sage Leaves
Put all ingredients in a Boston Shaker.
Top with ice and shake.
Shake vigorously until well chilled.
Rub a piece if lime around the glass rim, dash on the outside with a salt and sugar mix (2:1).
Double strain the contents of the Boston shaker into the glass.
Garnish with fresh sage leaves and a blackberry.