Dredge chicken in flour mixture and evenly coat both sides. Next, dip chicken into buttermilk and turn to coat both sides. Last, dredge chicken in cornflake crumbs and turn to coat both sides.
Place coated chicken breasts in prepared baking dish. Bake until chicken is tender and no longer pink in center, about 25 to 30 minutes (there is no need to flip the chicken during baking).
