Step 1

In a cocktail shaker, combine tamarind juice, sugar, freshly squeezed lime juice and grated ginger.

Step 2

Add white rum and spiced rum to the shaker.

Step 3

Fill the shaker with ice cubes and tightly seal it.

Step 4

Shake vigorously for about 15-20 seconds to chill the cocktail and infuse the flavors.

Step 5

Strain the mixture into a cocktail glass filled with ice cubes. Top with soda water, if desired.

Step 6

Garnish with a slice of lime and a cinnamon stick, if desired. Serve and enjoy responsibly.