Watermelon Soju Punch (Subak Soju Hwachae)

Ingredients

• 1 small seedless watermelon (about 8 lb.)1 1/2 cups lemon-lime soda
• 1 1/2 cups lemon-lime soda
• 1 cup soju
• 6 tbsp. fresh lemon juice
• 2 Tbsp. Campari
• 1/4 tsp. kosher salt
• 1/4 cup sweetened condensed milk
• 1/4 cup whole milk
• 1 cup frozen blueberries
• Mint sprigs, for garnish

Steps

1. Cut off and discard top quarter of watermelon. Scoop out about 2 cups of watermelon balls using a melon baller. Set watermelon balls aside. Scoop out remaining flesh until watermelon is hollow; place flesh in a blender. Position hollowed watermelon in a shallow bowl to keep steady and upright; set aside.
2. Process watermelon in blender until smooth, about 20 seconds. Pour through a fine wire-mesh strainer set over a bowl. Transfer 2 cups strained watermelon juice to a large pitcher or bowl.
3. Add soda, soju, lemon juice, Campari, and salt to pitcher, stirring until combined. Stir in condensed milk; add whole milk in a thin, steady stream while stirring constantly (to prevent curdling) until well combined.
4. Place ice, frozen blueberries, and reserved watermelon balls in hollowed-­ out watermelon. Fill with watermelon juice mixture; garnish with mint. Ladle into ice-­ filled glasses, and serve.