Finely chop about a cup of scallions, separating the white and green parts.

Mix together 2 tablespoons of light soy sauce, 1 tablespoon of dark soy sauce, and 1 teaspoon of sugar in a small bowl.

Heat 3 tablespoons of oil in a pan over medium-high heat.

Add the white parts of the scallions and fry for 2-3 minutes until fragrant.

Pour the hot oil over the sauce mixture to infuse the flavors.

Bring a pot of water to boil, add the wheat noodles, and cook as per package instructions.

Drain the noodles, return to pot, and pour the scallion oil sauce over; toss to coat.

Plate noodles, garnish with reserved green scallion tops, and serve immediately.