Add all ingredients to a large pot and bring to a boil. Let simmer for at least 2 hours. The longer you simmer, the more flavorful your broth is. I recommend simmering for about 6 hours. Your house will smell incredible!
Strain liquid into jars and store in the fridge for a week, or in the freezer for up to 6 months. I recommend only refrigerating what you know you will use that week, and freezing the rest.