Place the cornstarch in a shallow bowl or pie plate. Place the eggs in a separate shallow bowl. Working in two batches, toss the chicken pieces in cornstarch and then coat with the egg.
In a large skillet, heat the oil over medium-high heat. Again working in two batches, brown the chicken, turning it so that all sides are browned.
Place the chicken in a single layer in a 9x13-inch baking dish.
In a small bowl, whisk together the sauce ingredients and pour evenly over the chicken. Turn the chicken to ensure each piece is coated.
Bake for 1 hour, turning the chicken every 15 minutes. Serve with rice and steamed broccoli, if desired.
Chicken: You can substitute boneless, skinless chicken thighs for the breasts.
Vinegar: You can substitute white vinegar or apple cider vinegar. You can also use pineapple juice for a different flavor!
Pineapple and Bell Pepper: Add chunks of pineapple and red/green bell pepper to the chicken mixture in the pan before baking for even more flavor.
Extra Sauce: If you like a super saucy dish, I recommend doubling the sauce, using half as directed, and simmer the other half in a small saucepan while the dish is baking, then toss with the baked chicken when it comes out of the oven.
Serving Suggestions: Steamed rice, cauliflower rice, or fried rice, along with steamed or stir-fried vegetables (broccoli, carrots, snow peas, etc.).
Storage: Store leftovers in an airtight container in the refrigerator for up to 4 days.
Air Fryer: Air fry the chicken pieces in batches for 7-9 minutes, flipping halfway. Then place air-fried chicken in the baking dish, coat with the sauce, and proceed with baking as directed.
Slow Cooker: Pan-fry the chicken, then line a slow cooker with a slow cooker liner and place chicken in. Pour the sauce over the chicken and stir to coat. Cook on low for 6 hours or high for 3 hours. Important Note: The sauce won't reduce and thicken in the slow cooker the way it will in the oven, so you may want to transfer it to a saucepan and reduce on the stovetop before serving if you prefer a thicker sauce.