Add brown sugar, water, sweet potato puree, cinnamon, nutmeg, ginger, vanilla extract, and sea salt to saucepan over medium low heat.
Stir until all ingredients are dissolved and the liquid is uniform.
Bring the syrup to a boil then remove from heat and allow to cool before use.
Notes
PreparationRoom temperature or warm sweet potato puree works best in this recipe because it’s easier to stir into the other syrup ingredients. If you use chilled puree, just note that it will take an additional minute or so of stirring to dissolve.StorageStore the syrup in an airtight container and refrigerate. Because there’s actual sweet potato in the syrup, it will keep for just about one week.To freeze, transfer syrup to a freezer safe container to store for up to three months. I recommend freezing in ice or candy molds for easier thawing and use. Keep in mind that, based on the sugar content, the syrup might not freeze completely solid.