In a bowl, combine chicken, egg whites, Shaoxing wine, soy sauce, sesame oil. Toss to coat, marinate for at least 30 minutes.
In the meantime, toast the sesame seeds. Heat the pan and directly add the sesame seeds, stirring constantly until golden brown. Once browned, remove from the pan, it'll continue to cook, do not leave it in the pan for too long. Set aside.
Make the sauce. In a measuring cup or small bowl, combine chicken broth and cornstarch. Stirring constantly until the cornstarch dissolved. Add soy sauce, balsamic vinegar, brown sugar, and honey, stir to combine. Set aside.
In a baking dish or on a plate, add the flour, season with salt and pepper. Dredge each piece of chicken, shake off excess flour. Place the dredged chicken onto a platter or sheet pan.
Heat a wok or wide pan with oil. Add the chicken, cook them in batches. Cook the chicken for 2-3 minutes on each side or until golden brown. Remove from the pan, place them on a paper towel to drain excess oil. Set aside.
Drain the oil and wipe the pan. Heat the pan with 2 tablespoons of oil. Add the chilis saute until they start to blister. Add garlic and ginger, saute until aromatic. Add the chicken to the pan, season with salt and pepper.
Add green onions and sauce, constantly stirring until the sauce thickened. Sprinkle the toasted sesame seeds and drizzle with a teaspoon of sesame oil. Serve with steamed rice.