Prep your toppings first. Soft-boil eggs (6.5 minutes, then ice bath), slice scallions, rinse greens, and drain corn or bean sprouts. If using tofu, press and cube it. Getting these ready now makes assembly fast.
Cook the protein. In a wide pot, heat 1 tablespoon neutral oil over medium.
Add ground pork or sliced chicken and a pinch of salt. Cook until browned. If using tofu or mushrooms, sear until golden on edges.
Transfer to a plate and keep warm.
Build the flavor base. In the same pot, add 1 tablespoon sesame oil. Sauté 3 minced garlic cloves and 1 tablespoon grated ginger until fragrant, about 30 seconds. Stir in 1–2 tablespoons chili paste (gochujang or doubanjiang) and cook another 30 seconds to bloom the spices.
Make the broth. Pour in 4 cups low-sodium stock.
Add a small piece of kombu if you have it, and remove just before the broth boils. Stir in 1–2 tablespoons soy sauce and 1 tablespoon mirin. Simmer gently for 5–7 minutes to marry the flavors.
Whisk in the miso. Turn the heat to low.
In a small bowl, whisk 3 tablespoons miso with a ladle of hot broth until smooth, then return it to the pot. Add 1 tablespoon unsalted butter for body. Keep the broth below a boil to protect the miso’s aroma.
Adjust heat and seasoning. Taste and fine-tune with more soy sauce for salt, miso for depth, or a splash of rice vinegar for brightness.
Add chili oil or chili crisp to reach your ideal spice level.
Cook the noodles. In a separate pot, boil ramen noodles according to package directions (usually 2–3 minutes). Drain well. Cooking separately keeps the broth clear and the noodles bouncy.
Blanch the greens. In the noodle pot’s hot water, quickly blanch bok choy or spinach for 30–60 seconds.
Drain and set aside.
Assemble the bowls. Divide noodles into bowls. Ladle the hot miso broth over them. Top with your protein, halved soft-boiled eggs, greens, corn, and bean sprouts.
Finish with scallions, nori, sesame seeds, and a drizzle of chili oil.
Finish and serve. Add a squeeze of lime or a splash of vinegar if you like contrast. Serve immediately while the noodles are springy and the broth is steaming.