Basic Crab Stock:
2 Dungeness crab shells with all innards and all pieces from cracking crabs (see photo)
1 onion chopped
4 stalks celery chopped
1/2 bunch fresh parsley rough chopped
1 tbls Old Bay Seasoning
2 tsp fennel seeds
1 tbls Beau Monde or celery salt
1 head of garlic whole
1 tsp thyme
1 tbls whole peppercorns
Salt
Place all of the ingredients in a large stock pot and cover with cold water, at least 10 cups. bring to a boil and then simmer uncovered for an hour to two hours. Add water to keep level. Test for salt and seasoning and adjust as necessary. Remove from heat, cool and strain the liquid into a 1 gallon ziplock baggie. Freeze or refrigerate. Oh and by the way, your house will smell for at least 6 hours afterward.