in a large stock pot. Fill with water and bring to a boil, then simmer on low heat for about 36 hours. Strain out solids.
For the braised pork butt: Preheat the oven to 350 degrees F.
Sprinkle salt and pepper all over the pork butt and pan sear in olive oil over high heat to brown all sides. Transfer to a baking dish and add the stock, ginger, bay leaves, celery, garlic, tomatoes and onion and bake for 2 hours 30 minutes to 3 hours.
For the ramen: Cook noodles in salted boiling water to desired texture, 4 to 6 minutes. Heat 12 ounces broth in a pot. Put lard in a bowl and add hot noodles, then pour heated broth in bowl. Place pork belly and 4 ounces pork butt on top and add bamboo shoots. Top with arugula and spinach. Add hard-boiled egg if desired, and garnish with green onions.
This recipe was provided by a chef, restaurant or culinary professional. It has not been tested for home use.