Step 1.
- Fill a highball glass with ice.
Step 2.
- Pour 2 oz of gin over the ice.
Step 3.
- Add 1 oz of elderflower liqueur.
Step 4.
- Squeeze in the juice of half a lemon.
Step 5.
- Top with 3 oz of tonic water.
Step 6.
- Stir gently to combine.
Step 7.
- Garnish with an orange twist.