Instructions

  1. In a bowl, whisk together boiling water, brown sugar, ginger, and tamarind paste until mixture is mixed well.
  2. Let steep for 5 to 6 minutes, then add the lemon juice and let the mixture cool.
  3. Strain it through a fine sieve set over a pitcher and chill for 2 to 3 hours.
  4. Divide the cooler among tall glasses filled with ice cubes and garnish with a mint sprig.