Makes 8 popsicles
¼ cup dried sorrel
¾ cup water
10 mint leaves
2 tablespoons honey or agave nectar
5 cups cubed watermelon
1 lime, zested and squeezed
Prepare the sorrel by bringing a small saucepan of water to boil and simmering the flower of the plant for 8 to 10 minutes. Remove from heat. Add mint leaves and honey. Stir until dissolved, then let mixture stand for 20 to 30 minutes to steep.
Meanwhile, blend the watermelon in a food processor until smooth. Strain watermelon through a sieve lined with cheesecloth. Strain in the sorrel liquid. Add the juice and zest of the lime and stir.
Pour into popsicle molds and freeze until solid.