Step 1.
- Fill a cocktail shaker with ice.
Step 2.
- Add gin, fresh lemon juice, simple syrup, and mango puree to the shaker.
Step 3.
- Shake vigorously for about 15 seconds to chill and mix well.
Step 4.
- Strain the mixture into a highball glass filled with ice.
Step 5.
- Top with soda water and gently stir to combine.
Step 6.
- Garnish with a slice of mango and a sprig of mint.