Step 1.
- Fill a highball glass with ice cubes.
Step 2.
- Pour 2 ounces of vodka over the ice.
Step 3.
- Top up the glass with tonic water (about 4 ounces).
Step 4.
- Squeeze the juice of half a lime into the drink.
Step 5.
- Stir gently to combine.
Step 6.
- Garnish with a wedge of lime.