Combine all ingredients in a pot, bring to a boil. Turn down heat and simmer for 4 hours adding more water / seasoning if needed. After 4 hours add the turkey juice from the roast pan you cooked the turkey in.

Remove from heat, use a large strainer and strain all the liquid from the gizzard pot into a clean pot. This will leave you with a clear liquid broth. Season if necessary. Bring to a boil and thicken with a corn starch slurry.