2 oz. Patrón silver tequila
1 oz. Fresh grapefruit
½ oz. Fresh lemon
3/8 oz. Orgeat syrup
3/8 oz. Tamarind syrup
2 drops Hellfire Habanero Shrub bitters
Shake all ingredients in shaker with ice, strain into hollowed out grapefruit half. Garnish with the other half of the grapefruit or grapefruit slice.
Lucinda Sterling, mixologist at Middle Branch in New York, created this recipe.