Combine all of the ingredients except for the glucomannan into a medium saucepan
Once everything is stirred in together, sprinkle the glucomannan lightly over the surface of the syrup, and whisk to incorporate
Taste and adjust the flavors (the glucomannan tends to subdue the flavors somewhat), and turn the heat up to medium
Let your syrup come to a simmer, and thicken
It will thicken up a bit more when cooled/chilled. (If you like a thicker syrup, use a little more
glucomannan, up to 1 tsp
Serve warm or cold