egg and bread chicken breasts with garlic salt, pepper, and cornstarch/flour mixture

Fry breaded chicken breasts until brown

Heat vinegar, ketchup, soy sauce, and chicken stock in a pan. Add sugar when warm. Whisk vigorously until ketchup clumps have fully dissolved.

Place chicken breasts in 9x13 pan. Cover with sauce and bake at 325°F for 45 min - 1 hour