1. Place all ingredients in a crock-pot.
2. Add in water to cover the ingredients.
3. Bring to a boil over high heat, reduce & simmer gently.
4. Simmer for 24-48 hours.
5. Remove from heat & allow the broth to cool down.
6. Discard solids & strain remainder in a bowl through a sieve.
7. Let stock cool to room temperature, cover & chill.
8. Use within a week or freeze up to 3 months.