How to Make It
Cook the rice noodles according to the package directions; rinse.
Meanwhile, heat the oil in a large skillet over medium-high heat. Season the chicken with 1/2 teaspoon salt and 1/4 teaspoon pepper. Cook, turning occasionally, until brown on all sides, 6 to 8 minutes.
Add the soy sauce, vinegar, and sugar and toss. Cook, turning occasionally, until the glaze is syrupy and an instant-read thermometer inserted into the thickest drumstick (avoiding the bone) registers 165° F, 5 to 7 minutes. (Lower heat if the glaze begins to burn. Add 1 to 2 tablespoons water if the glaze is syrupy before the chicken cooks through.)
Serve the chicken over the noodles and cabbage, topped with the glaze and scallions.