Tamarind Ginger Cooler

Directions

1. 1.

   Break up tamarind with your fingers into a small heavy saucepan. Add 2 cups water and simmer, stirring occasionally and breaking up tamarind as it softens, 20 minutes. Remove from heat and let stand 15 minutes. Strain through sieve into a bowl, pressing on and then discarding solids.

2. 2.

   Whisk together ginger syrup, tamarind purée, remaining 5 cups water, and kosher salt in a large pitcher. Chill until cold.

3. 3.

   Stir drink (it will separate as it stands), then pour into glasses filled two-thirds with ice. Top off with soda water.