In a stockpot, place the chicken bones, then add all of the remaining ingredients, except the water. Add water to cover by 2 inches, bring to a boil and reduce the heat. Simmer uncovered for 2 to 3 hours, skimming as necessary.
Strain through a fine-mesh strainer into a clean bowl and cool. Refrigerate, covered, for up to 3 days, discarding the hardened layer of fat before using or freezing.