Blanch beef shank and tendon with ginger, scallions, Shaoxing wine and water
Remove scum and rinse beef under cold water
Toast all spices: cinnamon, star anise, black cardamom, red chilies, clove, coriander, Sichuan peppercorn, fennel, and bay leaves
Sauté onions, garlic and ginger until translucent and fragrant
Add spicy broad bean paste and tomatoes, sauté until tomatoes release their juices
Pour in Shaoxing wine, light and dark soy sauce, rock sugar, five spice and white pepper
Simmer for a few minutes
In a pot, add blanched beef, toasted spices, apple, soup base and cover with beef broth
Simmer for a couple of hours until beef is tender
Remove beef shank and slice it up
Let tendon cook longer until soft and jiggly, then slice
Strain soup and season to taste with salt and MSG
Boil noodles and bok choy
Assemble bowls and garnish with scallions, cilantro, and pickled mustard greens
