You are here: Home » Recipes » Watermelon Daiquiri Watermelon Daiquiri Recipe by National Watermelon Promotion Board Yield 5 servings A frozen libation with everyone's favorite summer treat: watermelon. National Watermelon Promotion Board PrintEmail Ingredients 4 cups cubed watermelon1/2 cup light rum or 2 ounces light rum1/4 cup fresh lime juice1/4 cup orange-flavored liqueur or Cointreau Ice cubes made with chopped fruit or freeze pureed watermelon into ice cube trays Instructions Freeze watermelon in a shallow pan at least 6 hours. Combine frozen watermelon, rum, lime juice and orange-flavored liqueur in a blender. Process until smooth, stopping once to scrape down sides. Add enough ice to bring mixture to 5-cup level; process until smooth. Repeat procedure, if necessary, until mixture measures 5 cups.