Soda syrup is a simple syrup—sugar dissolved in an equal amount of water—steeped with a flavoring agent. This is where imagination comes in, aided and abetted by inspiration from the garden. Besides fruit, sodas can be flavored with flowers, herbs, roots (like ginger), and leaves. Turn to the spice cabinet for additional ideas, such as whole vanilla beans (cream soda, anyone?). Combinations of flavors—lemon and lavender, lime and raspberry, or peach and cardamom—are particularly special. Either steep the products together in the simple syrup or make separate syrups and combine them in a glass.
As Nocito observes about the process, “You know what’s going into your sodas.” Not only can you select the flavors you want, but you can also determine how much sweetener to add and what type. Most basic is organic cane sugar, but honey, agave syrup, and stevia are also options.
Just remember, the recipes shown here are only guidelines. Feel free to adapt them according to your tastes and the nature of the ingredients. Some will require less sugar or more steeping time. The greatest benefit is that making soda is fun, healthful, and economical.
Of course you can buy supermarket seltzer water, but it’s more fun to make your own, either with a traditional soda siphon or new products that are a little more economical to operate.