A perfect summer cocktail to put into your repertoire, as it’s super easy. All you need is Mount Gay Rum, Gosling Ginger Beer, and lime. Here we used a Rangpur lime, which is a cross between a mandarin orange and a lemon—we love the way it looks in this drink! Fill the glass up with ice, pour in your rum, a 3 count pour, and then fill to top with the ginger beer. Squeeze in 2 quarters of lime.