In a saucepan, combine Swerve and cup of water together to make a “sugar” syrup. Mix well. Bring to a boil and mix well until Swerve is well dissolved. Let cool. Then chill for 3 hours in the refrigerator.
In a food processor or blender, process watermelon until smooth.
Add pureed watermelon juice and lemon juice in a large pitcher. Add cooled “sugar” syrup a bit at a time to your desired sweetness level. Chill until ready to serve
Right before serving, add club soda to chilled juice mixture. Taste and add additional “sugar syrup” for sweetness, if needed.
Serve over crushed ice. Makes about 8-10 servings at 0 SmartPoints on WW Blue (originally Freestyle).
It is best to make this the day before you are going to serve it so it's well chilled.
Recipe by Dee Dee Does at https://deedeedoes.com/weight-watchers-freestyle-0-point-party-menus-labor-day-weekend/