I guess this might be called my 'signature' dish and my husband was astonished that I hadn't posted it here yet. The original recipe came from my dog-eared copy of More Long-Life Chinese Cooking From Madam Wong but I've changed it so much that now it's my own. The black beans can be found in oriental markets, they keep forever in a clean glass jar with a tight fitting lid. I make this with fish fillets, usually Chilean sea bass but any firm, white fillet will work. You can also use a whole fish, just make 3, deep, diagonal gashes on each side of the fish. Cooking time is approximate, depending on the type and size fish you use. My sea bass fillet are pretty thick so I steam for 10 minutes total on them. Cook less for thinner fillets. Serve this fish with rice to soak up the delicious juice and I also, ALWAYS serve it with my Baby Bok Choy with Oyster Sauce. My husband loves to spoon some of the sauce from that onto his fish.