The oven cook time for the chicken may vary based on the size of your breasts. With two breasts that, together, weigh about 1.5 pounds, this cook time is perfect. If your chicken breasts are significantly larger, you may need to add a few more minutes in the oven. They will continue to cook a bit when you remove them from the oven and let them rest.
Total recipe time does not account for the time it will take the chicken to cool to room temperature