Put everything except the arrowroot slurry into a small sauce pan and bring to a simmer for 2 minutes.Add the arrowroot slurry and whisk until the sauce thickens. This will take less than a minute.Pour your sauce over any stir fry! You can freeze your sauce in ice cube trays or small freezer containers too. This recipe makes a little over 1 cup of sauce – enough for 1 family sized stir fry.