1 oz Jamaican rum, Hamilton Jamaican Black
1⁄2 oz Reposado Tequila
3⁄4 oz Lime juice
3⁄4 oz Pamplemousse Rose, Giffard
1⁄2 oz Becherovka
1⁄2 t Simple syrup (Optional)
Shake, strain, coupe.
Without the simple syrup the drink is dry and spicy but still good. I found the syrup is less about adding a lot of sweetness and more serving as the rug that ties the room together, but YMMV.