Simmer pork bones for several hours until the collagen and marrow create a silky texture. Fresh ramen noodles are served in the flavorful broth and topped with tender chashu pork, a soft-boiled marinated egg (ajitama), bamboo shoots (menma), nori (seaweed), sweet corn, green onions, and a sprinkle of sesame seeds. A drizzle of chili oil or garlic oil can be added for extra depth and spice.