Heat oven to 325. Heat oil in lg skillet, over medium heat. Season chicken pieces w/ salt and pepper. Place cornstarch in plastic, resealable bag. Add chicken to bag and shake to coat.
In shallow bowl, place beaten eggs. Dip chicken into eggs. Place chicken in hot oil. Cook about 2 mins per side. Place chicken in a baking dish.
In another bowl, mix together sugar, ketchup, apple cider, soy sauce and garlic salt or garlic powder. Pour sauce over chicken. Bake 1 hr, turning chicken over at least once. I serve this chicken over hot cooked rice. But it's fine w/out it!