1½ cups dry hibiscus flower
1 cup sugar (or to taste)
10 cups water divided
- Boil 4 cups water with hibiscus flowers and sugar on a medium-high flame for 20 minutes or until sugar is completely dissolved. The water should reduce slightly and become thicker in consistency.
- Strain the concentrate into a large pitcher. Reserve hydrated flowers for a later use.
- Stir in remaining 6 cups of water.
- Chill and serve over plenty of ice. Garnish with fresh lime slice.