Cooking time for chicken breast in the oven varies depending on the size and oven temperature. Typically, chicken breasts baked at around 425°F (220°C) take about:
- Small breasts (around 5 oz): 18-20 minutes
- Medium breasts (around 7 oz): 20-22 minutes
- Large breasts (around 9 oz): 22-25 minutes
Alternatively, at a lower oven temperature such as 375°F (190°C), chicken breasts might take 25-30 minutes to cook through. It is highly recommended to use an instant-read meat thermometer to ensure the chicken reaches a safe internal temperature of 165°F (75°C) to avoid undercooking or overcooking. Let the chicken rest after baking for a few minutes before serving. These guidelines help produce juicy, well-cooked chicken breasts without drying them out.
