Add sesame oil to a heavy-bottomed wide pan. Add ginger-garlic paste and sauté for a few seconds.
Stir in peanut butter.
Mix it well until well blended.
Add chili sauce and mix again.
Pour in vegetable stock.
Add milk, and mix until blended.
Add shiitake mushrooms and mix. Cover the pan and cook the Miso soup over medium heat for about 5 minutes.
Once the soup comes to a boil, uncover the pan and add Gochujang chili sauce, soy sauce, and miso paste, and stir it well.
While the soup is simmering, add corn kernels. Taste the soup and season it if needed.
Add ramen noodles and mix. Take the soup off the heat as Ramen noodles cook fast.
Cover the pan, let the noodles become soft, and soak in all the flavors.