Ingredients

  • 1 teaspoon whole fennel seeds
  • 2 tablespoons sugar
  • 3/4 cup water
  • 10 cups cubed seedless watermelon
  • 1 tablespoon lemon juice
  • Pinch kosher salt
  • Lemon wedges

Method

  • Toast the fennel seeds in a small skillet over medium heat, shaking the skillet, until the seeds are fragrant and a shade darker, about 2 minutes.
  • Add the sugar and 3/4 cup water and bring to a simmer, stirring constantly, to dissolve the sugar, and until the mixture is reduced by about 1/2, about 3 minutes.
  • Remove from the heat and steep 10 minutes.
  • In a blender or food processor and working in batches, puree the watermelon with the fennel syrup, lemon juice, and a pinch of salt, transferring the batches to a pitcher as blended.
  • Stir well to combine.
  • Serve the cooler in a glass over ice and garnish with a lemon wedge.