Emily Ho, an LA-based food writer (misschiffonade.com), loves to make her own sodas using seasonal fruits, herbs, and spices. She has two methods: one fresh, combining homemade syrup with soda from her home water carbonator, and the other bottled, using yeast to carbonate the soda naturally through fermentation. For the fresh version, find Fresh Citrus Lemongrass Soda on MyRecipes.
This fermented version is ever so slightly alcoholic, and has a lively fizz. You will need a light ale yeast (it comes in dried granules, like bakers' yeast), such as Coopers; beer bottles and caps; SaniClean solution; and an easy-to-use inexpensive beer bottle capper, such as the Emily capper model. Find all of these at home brewing shops or online (such as morebeer.com).
193 calories; protein 0.3g; fat 0.1g; carbohydrates 50g; sodium 1.4mg.