Fill the Glass: Start by filling a highball glass with ice cubes. Make sure the glass is nice and full to keep our cocktail perfectly chilled.

Add Ginger Beer: Pour the ginger beer into the glass, allowing it to settle among the ice cubes. This provides the spicy, effervescent foundation for our drink.

Float the Rum: Slowly pour the dark rum over the back of a spoon to "float" it on top of the ginger beer. This gives the Dark and Stormy its signature layered look.

Lime Juice (Optional): If you like a bit of tang, add ½ ounce of freshly squeezed lime juice to the mix. It adds a tart brightness that complements the drink wonderfully.

Garnish and Serve: Gently stir the drink, just enough to start mixing the layers, and garnish with a lime wedge. Voila! Your Dark and Stormy is ready to enjoy.