Add all the spices to a small muslin bag or tie them up in a few layers of cheesecloth. (We find that tea filter bags also work splendidly here.)
Add all the beef stew ingredients to a slow cooker or stockpot in the order listed (2 pounds beef stew meat, 1 onion, 1 small daikon radish, 1 head garlic, 1 2-inch piece fresh ginger root, 2 tablespoons oyster sauce, 2 tablespoons light soy sauce, 1 tablespoon dark soy sauce, 1 tablespoon maggi sauce, 1 tablespoon fish sauce, and 2 tablespoons brown sugar). Cover with 3 cups beef stock. It’s okay if some of the daikon and onions stick out, as long as all the beef is covered.
Push the bag of spices into the beef stock so that it’s fully submerged.
Cover with a lid. Slow cook on low for 8 hours. If cooking on the stovetop, bring to a gentle boil then let it simmer on low heat for 3–4 hours.
At the end of cooking, remove the lid and give the contents a stir. The beef should be fall-apart tender. Salt to taste (see Note 2) and remove the bag of spices.
Serve over rice or noodles, with lots of fresh herbs.