Use a lemon reamer to squeeze all of the juice to fill 2 cups full of fresh juice
Prepare a large pitcher or jar with a lid with 1 Gallon cold water and add lemon juice
Place in the refrigerator and set aside
In a bowl with the xylitol or Swerve and 2 cups water, place in microwave for 35 seconds and then stir well
Add sweet water to pitcher with lemon juice
Stir well
Add lemon slices and ice cubes
Store in refrigerator
Garnish with mint leaves if desired