Step 1

Mince the garlic and ginger. Then slice the green onions into rounds. Separate the green and white portions and set them aside.

Step 2

In a saucepan, heat the oil over medium heat. Add the garlic, ginger, and white potion of the scallions and saute until fragrant (about 30 seconds).

Step 3

Add the stock, soy sauce, miso paste, mirin, sugar, and vinegar. Bring mixture to a boil, then reduce heat to low and simmer for 5 minutes to bring the flavors together. Add the noodles and cook for the time stated in the package instructions.

Step 4

Taste the broth for seasoning before serving. Add more soy sauce for saltiness, mirin or sugar for sweetness, or rice vinegar for acidity. If it's salty, add more stock or water to taste.

Step 5

Divide the soup evenly into bowls. Top with the green portion of the scallions and any other desired toppings. Serve hot.