3/4oz Lemon Juice 
3/4oz Simple Syrup 
3/4oz Guava Puree 
2oz Bombay Sapphire Gin
Sparkling Water Topper  
Lemon Twist  
 
Bar Equipment: Jigger, Shaker, Strainer
 
Glass: Collins
 
Instructions
Using your jigger pour 3/4oz Lemon Juice, 3/4oz Simple Syrup, 3/4oz Guava Puree, and 2oz Bombay Sapphire Gin in your shaker 
Shake with ice and strain into your Collins glass 
Fill glass with ice and top off with your Sparkling Water
Add Lemon Twist