at what temp is an oven baked chicken done
1 The chicken breasts should be completely covered with the parchment.  Bake until the chicken is 165Â°F: Transfer the chicken to the oven until the chicken is completely opaque all the way through and registers 165Â°F on an instant-read thermometer. Start checking after 20 minutes; total cooking time is usually 30 to 40 minutes.