Add half the oil to a baking dish and rub around the bottom (where the chicken will touch).
Then, add the chicken and pour the remaining oil on top. Rub it around so the entire top of the chicken breast is covered.
Sprinkle on the seasoning salt and pepper.
Bake at 450°F for 14-18 minutes. Check to make sure the chicken is done (see notes).
Then allow to rest for 3-5 minutes before cutting or serving.
Notes
The best way to check that your chicken is done is to use a meat thermometer and make sure the thickest part of the chicken has reached 165°F.
If you don’t have a meat thermometer, you can check the chicken by cutting into the thickest part. The meat should be white (not pink) and the juices from the chicken should run clear.