• 1/2 cup dark honey
  • 1/2 cup fresh lime juice
  • 1/2 cup firmly packed fresh mint leaves
  • 2 cups fresh grapefruit juice, chilled
  • 2 cups fresh orange juice, chilled
  • 2 teaspoons grated lime zest
  • 1 lime, cut into 6 slices

In a small saucepan, combine the honey and lime juice. Bring to a boil over medium heat. Add the mint leaves and remove from the heat. Steep the honey mixture for 5 minutes, then pass the mixture through a fine-mesh sieve placed over a bowl, pressing down lightly on the leaves with the back of a wooden spoon. Refrigerate the syrup until cold.
In a large pitcher, combine the mint syrup, grapefruit and orange juices, and lime zest. Stir until the syrup is dissolved.
Pour into tall, chilled glasses and garnish each glass with a lime slice.