Preheat the oven to 325 degrees F.
Heat the oil in a large skillet over medium heat.
While the oil is heating, cut the chicken breasts into 1-inch pieces.
Season with salt and pepper.
Place the cornstarch in a gallon-sized ziploc bag.
Put the chicken into the bag with the cornstarch and seal, tossing to coat the chicken.
Whisk the eggs together in a shallow bowl, season lightly with salt and pepper.
Dip the cornstarch-coated chicken pieces in the egg and place them carefully in a single layer in the hot skillet.
Cook for 1-2 minutes and then flip each piece over to cook on the other side until nicely golden but not all the way cooked through.
Place chicken pieces in a single layer in a baking dish.
Mix the sauce ingredients together in a medium bowl and pour over the chicken in the baking dish.
Bake for one hour, turning the chicken once or twice while cooking to coat evenly with sauce.
Sprinkle baked chicken with chili flakes, if using before serving over hot, steamed rice. Enjoy! 😊