Step 1

Follow package instructions to heat and separate noodles.

Step 2

Combine the soy sauce, sugar, red pepper flakes, vinegar, and water in a small bowl and whisk to combine.

Step 3

Heat the vegetable oil in a large saute pan or wok set over medium-high heat. Add the sliced onions and stir fry for 1 minute. Add the cabbage and cook for another 2 minutes until softened. Add the prepared yakisoba noodles and toss well.

Step 4

Pour the sauce into the pan and toss to coat the noodles. Stir fry for 3 to 4 minutes until heated through. Turn off the heat and add the scallions. Serve hot.