Chicken breasts at 300 degrees how long will they take?

Boneless, skinless chicken breasts:

- Baked at 300°F: 40-50 minutes, or until internal temperature reaches 165°F.

Bone-in, skin-on chicken breasts:

- Baked at 300°F: 50-60 minutes, or until internal temperature reaches 165°F.

Always use a meat thermometer to ensure chicken is cooked to a safe internal temperature.