Hello Tom, and happy belated birthday. Elderflower liqueur is a fantastic gift, but you are very wise to ask about proportions before mixing. Elderflower liqueur is quite concentrated and carries a significant amount of sugar, so if you use too much, it can easily overwhelm the botanicals of your gin and turn the drink syrupy.
To answer your question directly: yes, fresh lemon juice and club soda are your two best friends here. While you can certainly make an elderflower gin and tonic, tonic water already contains a fair amount of sugar and bitterness. Pairing elderflower with club soda instead provides clean effervescence that lets the floral notes shine without adding extra sweetness.
Here is a dependable, classic homestyle recipe often called an Elderflower Collins, scaled for simple kitchen measurements:
1. Combine 2 ounces (4 tablespoons) of your favorite gin with 0.5 ounce (1 tablespoon) of elderflower liqueur in a tall glass filled with ice.
2. Add 0.5 ounce (1 tablespoon) of freshly squeezed lemon juice. Using real lemon rather than bottled juice makes a remarkable difference in cutting the sugar.
3. Stir gently for a few seconds with a regular dinner spoon to chill and blend the ingredients.
4. Top off the glass with about 3 to 4 ounces of cold club soda, give it one light stir, and garnish with a lemon slice if you like.
If you prefer to stick closer to your usual Gin and Tonic routine, you can simply make your standard G&T, reduce the gin slightly, and stir in just one teaspoon to half a tablespoon of elderflower liqueur. However, for a Sunday family supper, the lemon and club soda combination is crisp, balanced, and universally enjoyed. I hope you and your family have a wonderful evening.
