Step 1

1 Thoroughly clean the inside and outside of both tins of a Boston shaker

Step 2

2 In a small pot or kettle, bring the water to a rolling boil

Step 3

3 Fill a heatproof mug with some of the boiling water to keep the mug warm while you make the drink

Step 4

4 Pour about 1 cup of the boiling water into the smaller tin

Step 5

5 Lower the larger tin into the smaller one (it will float in the hot water, but the bottom will be submerged, warming the ingredients)

Step 6

6 Keep the remaining hot water on the stove over low heat

Step 7

7 In the floating tin, stir together the rum, fig syrup, lemon juice and Angostura bitters until combined and warmed through

Step 8

8 Discard the hot water in the mug, then pour the contents of the shaker tin into the emptied mug

Step 9

9 Top with 3 to 4 ounces of the simmering water, float the clove-studded lemon wheel on top, if using, and serve