I always think of the sidecar as a brandy margarita, except that it is made with fresh lemon juice.
The quality of your ingredients significantly impacts a Sidecar. Always opt for freshly squeezed lemon juice; bottled alternatives lack the vibrant acidity. The choice of brandy is crucial—a VS or VSOP Cognac works beautifully, offering depth without overpowering. For Cointreau, ensure it's a high-quality triple sec for a balanced sweetness and orange aroma. For an enhanced presentation and flavor, consider a sugared rim (fine sugar) or a half-sugar, half-salt rim on the martini glass, which complements the tartness. Vigorously shaking for 30 seconds ensures optimal chilling and dilution, leading to a perfectly balanced drink.