Slice chicken into bite-sized pieces or keep whole if preferred.
Season with salt, pepper, and lightly coat with cornstarch for a crispy texture.
Heat oil in a pan over medium-high heat.
Add chicken and cook for 4-5 minutes per side (or until golden brown and cooked through).
In a small bowl, whisk together soy sauce, brown sugar , vinegar, sesame oil, garlic, and ginger.
Pour the sauce over the cooked chicken and let it simmer for 1-2 minutes.
Stir in the cornstarch slurry and cook until the sauce thickens. If too thick, add a little water.
Garnish with sesame seeds and chopped green onions.
Serve over steamed rice or stir-fried veggies.
