Boil up the carcass with the diced onions,chopped carrot and garlic cloves . When it's come t the boil let it simmer for 4-5 hours or overnight in the slow cooker
Skim off any fatty boys as it cooks
Strain through a Muslin cloth or fine sieve and allow to cool. Pick any reman get chicken off of the bones and reserve
When cold you can remove any fatty deposits that may have settled on the top
Pour the liquid into a large pan add the diced carrots and heat until the carrots are cooked through
Season with salt and pepper and add the vermicelli for last 5 minutes of cooking . Add the chicken you've picked from the bones and let it heat through
Serve with the dumplings that you've poached in water