This turkey broth can of course be done with a domestic turkey; the two are not so different, although you will get a better broth with a better turkey. The key to this broth is to not let it boil, and to let the carcass cook for a long time before you add the veggies.
3leeks,washed well and chopped (including green tops)
3celery stalks,chopped
Stemsfrom 1 bunch parsley,chopped
1parsnip, chopped(optional)
2 or 3bay leaves
1tablespoondried thyme
1small handful of dried mushrooms, crushed(optional)
1fennel bulb, chopped(optional)
Instructions
Break up the turkey carcass into large pieces so it will fit in the pot. Use the largest stockpot you have. If you have not cooked the turkey already, roast the carcass with a little oil and salt at 400F until it is nicely browned, about an hour. Or, you can make a lighter broth by covering the uncooked turkey carcass with water, bringing it to a simmer (not a full boil) and skimming off any scum that floats to the surface. Do this for 15 minutes or so and then proceed.
Let the turkey simmer very gently -- you want the surface of the pot to barely shimmy, not bubble much at all -- for at least 2 hours and up to 12 hours. When you want to finish your broth, add the vegetables, herbs and mushrooms and simmer gently for another 90 minutes.
To strain, set a paper towel in a strainer and put the strainer over another large pot. Ladle the broth through the paper towel to filter out any debris. You might need to change the paper towel midway through the process.
Now you can either add salt to the finished stock or jar it as-is. If you plan to freeze the broth, leave about an inch of headspace in the jar, otherwise the expanding broth-ice will crack the glass. You can also pressure can this stock.