Fizzy Lemon Slushy
1 cup sugar
¾ cup fresh lemon juice (juice of 4–5 lemons)
1 cup fresh strawberries, cleaned and sliced, divided
1 cup fresh raspberries, divided
2 cups milk
2 cups club soda, chilled
Purée ½ cup strawberries and ½ cup raspberries in food processor or blender; add to lemon mixture, mix well. Stir in milk,* cover with plastic wrap; freeze 15 min. Remove from freezer and scrape ice crystals with spoon. Return to freezer for 15 min.; remove and scrape ice crystals. Continue this process, scraping every 15 min. until mixture reaches desired thickness, about 1 hour.
Divide remaining berries among 4 glasses. Add ½ cup soda, top with slushy mixture. Stir slightly; serve immediately.