My boyfriend and I bought a rotisserie chicken for dinner one night and used the leftover bones and meat to make a soup the next day.
We made the chicken broth first. Pick out the leftover meat and put aside.
Boil a pot of water with:
-chicken bones and skin
-salt and pepper
Leave to simmer for 4 hours, then strain the broth from the pot and throw away the vegetables and bones.
For the soup:
-sautée celery and onions in the pot
-add the broth to the pot
-add leftover chicken