In a large stockpot, add turkey carcass and cover with 6 cups of water. Cook on medium high heat for 45 minutes. Set timer.
Meanwhile, chop onions, bell pepper, celery and garlic.
When timer goes off, remove turkey from stove top. Into a measuring cup and using a strainer, strain turkey broth. Set turkey carcass to the side.
In dutch oven, melt butter and saute vegetables until translucent. Add flour into dutch oven and stir well for a couple of minutes.
Add in broth one cup at a time. Stirring well each time. Add in all seasonings and stir. Cook for 30 minutes.
Meanwhile the soup is cooking, remove turkey from carcass and add to a bowl. Cut turkey into bite size pieces and add to soup. Once turkey has been heated, taste chili and adjust seasonings.