To prepare sauce, combine honey and mustard in a small bowl; cover and chill.
Preheat oven to 400°.
To prepare chicken, combine chicken and buttermilk in a shallow dish; cover and chill 15 minutes. Drain chicken, discarding liquid.
Combine cornflakes and next 5 ingredients (cornflakes through pepper) in a large zip-top plastic bag; add 4 chicken pieces to bag. Seal and shake to coat. Repeat procedure with remaining chicken. Spread oil evenly in a jelly-roll pan, and arrange chicken in a single layer in pan. Bake at 400° for 4 minutes on each side or until done. Serve with sauce.