- 1/2 medium watermelon (about 4 pounds) rind removed and discarded, watermelon cut into large chunks
- 1 cup unsweetened lime-flavored seltzer
- 1/4 cup fresh lime juice
- Working in 2 batches, puree the watermelon in a blender, and pass through a fine-mesh strainer. Discard the solids in the strainer. Fill 4 large glasses with ice. Add 1 cup watermelon juice, ¼ cup seltzer, and 1 tablespoon lime juice to each glass and stir to combine. Serve.