Cut the chicken into bite-sized pieces and season with salt, pepper, and a little soy sauce.
Coat the chicken pieces in cornstarch and flour until evenly covered.
Heat oil in a pan and fry the chicken until golden brown and crispy. Remove and drain excess oil.
In another pan, sauté minced garlic and ginger until fragrant.
Add soy sauce, rice vinegar, sugar, chili sauce, and a little water. Simmer until the sauce thickens.
Add the crispy chicken and toss well until every piece is coated with the sauce.
Garnish with sesame seeds and chopped green onions. Serve hot with rice or noodles.