Combine ingredients except ginger ale with ice. Shake. Add some ginger ale and stir, double strain into glass, top with rest of ginger ale. Garnish with lemon.
To make Earl Grey infused gin, combine 2 cups gin with leaves from two tea bags of earl grey tea (leaves removed from tea bags, and tea bags discarded). After at least 24 but not more than 48 hours, strain the tea leaves from the gin.
Before 2012, this drink was made with vodka in place of the gin.