2 oz Bermuda rum, Gosling's Black Seal
1 oz Simple syrup (see note)
2 ds Bitters, Scrappy's Lime
4 oz Ginger beer (to top)
1 wdg Lime
Instructions
Combine syrup, rum, and bitters in highball filled with ice, top off with ginger beer. Squeeze lime wedge into drink, drop spent wedge into glass. Stir and serve.
Notes
For syrup: 1 cup sugar, 1 cup water, zest of two limes, 6-inch knob of ginger peeled and sliced thin. Combine ingredients in a medium saucepan, bring to low boil and remove from heat; let cool, strain and refrigerate up to one month.