1Heat 1 tbsp vegetable oil in a large skillet over medium heat. Add garlic, ginger, and whole dried chilies. Toast for 30 seconds until fragrant.
2Whisk together soy sauce, rice vinegar, sugar, and chicken broth in a small bowl. In another bowl, mix 1.5 tbsp cornstarch with 1.5 tbsp water to make a slurry.
3Pour the soy mixture into the skillet. Bring to a simmer, then stir in the cornstarch slurry. Cook for 1–2 minutes until the sauce thickens and turns glossy.
4Add shredded rotisserie chicken and toss to coat completely in the sauce. Warm through for 2–3 minutes, then drizzle with sesame oil.
5Scatter white parts of scallions over top and serve immediately over rice. Finish with green scallion tops.