1 oz Bermuda rum, Gosling's Black Seal
1⁄2 oz Jamaican rum, Wray & Nephew Overproof
1⁄2 oz Grapefruit shrub, Liber & Co
1⁄2 oz Lime juice
1⁄2 oz Gomme syrup
Instructions
Shaken, on the rocks, garnish with lime wedge.