Phase 1 | Serves 12  
Prep time: 15 minutes | Total time: 3 hours (includes chilling time)

Ingredients

   4 cups water
   2 cups coarsely chopped peaches, plus more for garnish
   3/4 cup xylitol
   1/2 cup fresh strawberries, plus more for garnish
   1 cup fresh lemon juice
   4 cups ice
   16 ounces seltzer

Directions

1. Combine the water, peaches and xylitol in a saucepan over medium-high heat. Bring the mixture to a boil, reduce the heat to low, and simmer for 3 minutes.
   
   
2. Pour the mixture into your blender and allow it to sit uncovered for 20 minutes to cool slightly. Add the strawberries. Secure the lid onto your blender and puree until smooth.
   
   
3. Chill the mixture thoroughly (this will take a few hours in the fridge, or you can put it in the freezer to speed things up).
   
   
4. Pour the mixture through cheesecloth into a large pitcher. Stir in the lemon juice. Divide the mixture among 12 ice-filled glasses, and top with a splash of seltzer.
   
   
5. Garnish with peach and strawberry slices and enjoy!