Add the water, citrus zests, chaga, lavender, and spices to in a small saucepan and mix to combine. Bring the mixture to a low boil, then reduce the heat to simmer on low for 20 minutes, covered.
2 cups water, Zest of 2 oranges, Zest of 1 lemon, Zest of 1 lime, 1 tablespoon chaga powder, 2 cinnamon sticks, 2 teaspoons finely grated fresh ginger, ½ star anise, ½ teaspoon lavender blossoms, ¼ teaspoon coriander seeds, ⅛ teaspoon ground nutmeg
After the mixture has steeped, turn off the heat and add the sugars. Stir until the sugar has dissolved. Pass the mixture through a fine mesh sieve to remove the solids. They can be composted.
1 ¾ cup cane sugar, ¼ cup coconut sugar
Stir the vanilla into the strained syrup. Store the syrup in a clean glass jar or bottle the fridge. It should last for at least a month.
½ teaspoon vanilla extract
To make the cola, start with a teaspoon of syrup per glass of carbonated water. Taste and adjust as needed. I like to use around 2 teaspoons for our fairly large glasses.
Video
Notes
* I usually use two teaspoons in a glass of soda. This makes about 2 cups total of chaga syrup so that's approximately 48 servings.