Watermelon Cucumber Basil Seltzer
To make fruit concentrate: place watermelon, cucumber, basil, and lime in a pitcher or large jar and smash with a wooden spoon to release their juices. Stir in water. Let the mixture infuse in the fridge overnight, then strain.Advertisement
To make simple syrup: combine water and sugar (or honey) in a small saucepan over medium heat. Simmer, stirring occasionally, until completely dissolved. Let cool.
To make soda: for each serving of soda, combine 1/4 cup fruit concentrate, 1 tsp. simple syrup and 3/4 cup seltzer water in a glass. Serve with ice if desired.
To make ahead: The fruit concentrate will keep, covered, in the refrigerator for up to 3 days. The syrup will keep, covered, in the fridge for up to 1 week.
Tip: Create additional seltzer flavors using these combinations for the fruit concentrate.
Cranberry Orange Ginger: 1/2 cup cranberries, fresh or frozen (thawed) 1/2 orange, sliced 1 tsp. sliced fresh ginger
Pineapple Lemon Ginger: 1 cup chopped pineapple, fresh or frozen (thawed) 1/2 lemon, sliced 1 tsp. sliced fresh ginger