Add the chicken or turkey carcass plus any leg, thighs and wings to a tall stock pot
Add the bouquet garni and enough COLD water to cover
Bring it slowly to a gentle simmer and keep it there, uncovered, for 3 to 4 hours, skimming off fat and scum from time to time. DO NOT let it boil!
Strain the stock through a colander into a large bowl or pot. Discard all the solids
Cool the stock as quickly as possible before refrigerating-ideally 1½ hours. One simple way is to fill a zip top bag with ice cubes, close and put into the cooling stock. Add more ice as it melts in the bag. Once the stock has reached a temperature around 50℉ you can refrigerate until chilled through. **NOTE: Never put hot stock in the refrigerator or freezer. The heat of the the stock will raise the temperature of the fridge and compromise the other foods
Once the stock is completely chilled you can easily remove any fat that has congealed on the top of the stock