I'm embarrassed to admit that all the years I've used shrimp and tossed away the shells that I just found out about using these shells to make broth! But to many confusing messages about how to do this. Just last night I took shells, added water and cooked it for a little while and the whole house wreaked of shrimp BUT when I added a bay leaf and white peppercorns the aroma was very nice but did not get this right. Everything I've read says the broth is exceptional...mine...not. The broth did boil, was I not supposed to do this and maybe just let it simmer? I would like to explore ways to use seafood like shrimp shells including the cooking process, using herbs, butter anything that someone would guide me through on this. Next time I believe I will try a pot of shells and add lemons, maybe basil and onions but I'm in the dark here on this. Thank you for any help here.