Rinse peas and combine with bone broth and water in a large soup pot. Bring to a boil
Add ham bone, celery, 1 tbsp parsley, and tarragon. Reduce heat to medium low and simmer partially covered for 45 minutes. Stir occasionally
Melt the butter in a sauce pan. Add carrots, onion and leek. Cook until until wilted, about ten minutes. Add to the soup pot along with the spinach. Simmer partially covered for thirty minutes
Remove soup from the heat. Remove the meat from the ham bone and shred. Remove any excess fat and return the shredded meat to the pot.
Add sherry, pepper and remaining parsley. Heat thoroughly and enjoy!