Step 1.
- Fill a highball glass with ice cubes.
Step 2.
- Pour 2 ounces of vodka over the ice.
Step 3.
- Add 1 ounce of fresh lemon juice.
Step 4.
- Add 0.5 ounces of elderflower liqueur.
Step 5.
- Top off with 3 ounces of soda water.
Step 6.
- Stir gently to combine the ingredients.
Step 7.
- Garnish with a lemon twist.