Heat sesame oil in a pan and cook ground pork until browned.
Add Tobanjan, garlic, and sugar. Stir-fry until fragrant.
Pour in water, milk, and chicken bouillon. Bring to a gentle simmer.
Add miso and mix until dissolved.
Add frozen udon and bean sprouts, cooking until noodles are heated through and sprouts are tender.
Pour into a bowl and top with green onions, chili crisp, and roasted sesame.
