Taiwanese Beef Noodle Soup (Hong Shao Niu Rou Mian) | Saveur

Ingredients

• 2 lb. 14 oz. long-cut boneless beef shanks (about 3)
• 2 Tbsp. canola oil
• One 2-inch piece ginger, unpeeled, cut into ¼-inch slices
• 10 cloves garlic, crushed
• 3 dried chiles de árbol
• ¼ cup Taiwanese rice wine
• 2 Tbsp. dark soy sauce
• 1 Tbsp. black vinegar
• 1 tsp. sugar
• 2 medium yellow onions, quartered
• 3 plum tomatoes, quartered
• 4 star anise pods
• 1 Tbsp. whole black peppercorns
• Kosher salt
• 6 baby bok choy
• 2 lb. thin egg noodles
• Pickled mustard greens, chopped, for garnish