Agua de Jamaica

• 1½ ounces (40 g) dried hibiscus flowers
• 1 sliver of cinnamon stick

In a 2-quart saucepan over medium heat, bring the hibiscus flowers, 1½ cups (360 ml) tap water, cinnamon, and ginger to a simmer. Cover and simmer for 15 minutes.

Remove from the heat and allow to