Bucks refer to drinks that combine lime and ginger beer, so a dark and stormy with lime is an example of a buck.
Ingredients2 fluid ounces light rum
1/2 fluid ounce hibiscus syrup
1/2 fluid ounce freshly squeezed lime juice
3 dashes aromatic bitters
ice cubes
4 fluid ounces ginger beer, or more to taste
MethodCombine rum, hibiscus syrup, lime juice, and bitters in a highball glass. Add enough ice to bring liquid volume up halfway; stir to combine. Top mixture with ginger beer.