As a home cook, preparing delicious and healthy meals for yourself and your family is probably a top priority. However, cooking chicken properly while avoiding over or undercooking can be a challenge. When making oven-baked chicken breasts, especially thin slices, it is important to observe the correct timing. Setting your oven to the ideal temperature and knowing how long to cook thinly sliced chicken breasts will help you get perfectly cooked, juicy and safe chicken every time.
In this article, you’ll learn expert tips about how long to cook thin sliced chicken breast in oven as well as what temperature to use for best results. With this knowledge, you’ll eliminate the guesswork and confidently serve nutritious baked chicken that is moist and delicious. Follow the guidance here for perfect thinly sliced chicken breasts.
Table of Contents
Preparing Thin Sliced Chicken Breasts for the Oven
Selecting and Portioning the Chicken
When selecting chicken breasts to cook in the oven, choose boneless, skinless breasts that are evenly thick. For thin slicing, look for breasts that are 1/2 inch thick or less. Wash the breasts and pat dry with paper towels or a clean kitchen towel. Place one breast at a time on a cutting board and, using a sharp knife, carefully cut into 1/4-inch thick slices.

Seasoning the Chicken
Sprinkle chicken slices with salt and pepper on both sides. You can also add dried or fresh herbs like rosemary, thyme, oregano, or basil if you like. For extra flavor, drizzle the slices with olive oil or melted butter and sprinkle with lemon or lime juice. Marinate the slices in the refrigerator for at least 30 minutes to enhance the flavor.
Heating the Oven
Preheat your oven to 400 F. For thinner chicken breast slices, higher temperatures are required to cook the meat thoroughly without drying it out. If your oven has a convection fan, using it will help circulate the hot air better for cooking.
Arranging the Chicken in the Oven
Place the chicken slices in a single layer on a foil-lined baking sheet, leaving at least 1/2 inch of space between them. Do not overlap the slices. For extra browning, spray the tops of the slices with cooking spray. Bake the chicken for 10 to 15 minutes, until the slices are white and opaque with no pink left and the juices run clear. An internal temperature of 165 F indicates that the chicken is safely cooked.

Serving and Enjoying
Let the cooked chicken rest for 5 minutes, then serve and enjoy with sandwiches, salads, or your favorite sides like roasted vegetables, pasta, or rice. Chicken can be stored in the refrigerator for up to 3 days. Reheat thoroughly before eating.
Recommended Internal Temperature for Cooked Chicken
To make sure your thinly sliced chicken breast is safe to eat, it’s important that it reaches a high enough internal temperature to kill harmful bacteria like salmonella. The U.S. Food and Safety Inspection Service recommends cooking chicken breasts to an internal temperature of at least 165°F or 74°C. Chicken is considered safe to eat at this temperature.
Using a Food Thermometer
The only way to accurately determine whether the chicken has reached a safe internal temperature is to use a food thermometer. Insert the probe into the thickest part of the chicken breast to get a reading. Be very careful, as the chicken and thermometer probe will be extremely hot.

Cook Time May Vary
The time it takes for chicken breasts to reach 165°F will depend on the thickness of your cuts and the temperature of your oven. Thin slices about ¼ inch thick may need only 10-15 minutes in a preheated 400°F oven. Cuts ½ inch or thicker may take 20 minutes or more. It’s best to check the chicken with a food thermometer at regular intervals to see if it has reached a safe internal temperature.
Appearance Can Be Deceiving
While chicken may appear cooked based on color, clear juices, or if it pulls apart easily with two forks, these visual indicators are not really reliable ways to determine if it is at a safe internal temperature. has been reached or not. Always insert a food thermometer into the thickest part of the chicken breast to ensure the temperature has reached at least 165°F before eating. Foodborne illness from undercooked chicken can be serious, so safety must come first.
Oven Temperature and Cook Times for Thin Sliced Chicken Breasts
To cook thinly sliced chicken breasts in the oven, it is recommended to preheat the oven to 350-375°F. At 350°F, 1/4 inch thick slices of boneless, skinless chicken breasts will take about 15-20 minutes to cook. For every 25° increase in temperature, reduce cooking time by approximately 5 minutes.

Cooking at 350°F
At 350°F, place chicken breast slices in a single layer on a foil-lined baking sheet. Bake for 15-20 minutes, flipping halfway through, until chicken reaches an internal temperature of 165°F and the juices run clear. The chicken is cooked when it is white and opaque with no pink color left and the pieces are firm.
Cooking at 375°F
For quicker cooking at 375°F, check the chicken after 10-15 minutes. Overall the chicken should be cooked in 15-20 minutes. Check for proper internal temperature and that the juices run clear before removing from the oven. Higher oven temperatures, while speeding up cooking, can cause the outside of the chicken to dry out if overcooked, so be sure to monitor closely.
Important Food Safety Tips
To ensure safe consumption, the internal temperature of the chicken must reach 165°F. Uncooked chicken could be contaminated with harmful diseases like salmonella. Verify that the chicken has achieved a safe internal temperature. Let the chicken rest for 3 to 5 minutes before serving, as the temperature will continue to rise slightly as it rests. Enjoy your thinly sliced oven-baked chicken breasts!
The cooking time provided is approximate. Oven temperature and cooking time may vary depending on the actual thickness of the chicken slices and your oven’s heating elements. It is best to check the chicken during the last few minutes of cooking to make sure it is not overcooked or undercooked. With some experimentation, you’ll determine the perfect oven temperature and time combination for your thinly sliced chicken breasts.
Tips to Keep Thin Sliced Chicken Breasts Moist
To ensure that thinly sliced chicken breasts remain moist and tender when cooked in the oven, you should follow some best practices:

Brine the Chicken Breasts
Soaking chicken breasts in a saltwater solution before cooking will keep them more moist. The salt in the brine helps the meat absorb and retain water. You can brine chicken breasts for 30 minutes to 2 hours. Wash and dry them before cooking.
Don't Overcook the Chicken
Thin chicken breasts can dry out if overcooked. Carefully monitor the chicken as it cooks and check that it has reached an internal temperature of 165 F. The chicken is cooked at 165 F, so be sure to remove it from the oven immediately to avoid overcooking.
Use a Moderate Oven Temperature
Cooking chicken at high oven temperatures can dry out the outside before the inside is cooked. Bake the chicken at 350-375 F for best results. This more moderate temperature will allow the chicken to cook evenly and stay moist.
Tent the Chicken with Foil
Covering chicken breasts with foil when baking in the oven will help them retain more moisture. The foil traps steam and helps keep the chicken tender. Make sure to make a few holes in the foil to let some steam out. Remove foil during the last 10-15 minutes of cooking until the chicken is browned.
Serve the Chicken Immediately
Chicken breasts will remain dry after cooking. Serve the chicken immediately after removing it from the oven for the moistest and tenderest results. If you can’t serve the chicken right away, cover it with foil and place it in a hot oven (about 170 F) until ready to serve.

How Long to Cook Thin Sliced Chicken Breast in Oven (FAQs:)
What temperature should I preheat the oven to?
It is recommended that you preheat your oven to 400°F before placing the chicken breast fillets on a baking sheet. The higher temperature will help cook the outside of the chicken quickly while keeping the inside moist. Be sure to check the chicken regularly as it cooks to ensure it doesn’t overcook.
How long does it take to cook thin sliced chicken breast in the oven?
The cooking time for thinly sliced chicken breast fillets will depend on their exact thickness, but as a general rule, it will take 12 to 15 minutes for the chicken to be fully cooked. Check that the thickest part of the largest breast fillet reaches an internal temperature of 165°F to ensure safety and doneness. The chicken is cooked when the juices run clear and the fillets are no longer pink in the center.
Should I flip the chicken breasts during baking?
For evenly cooked chicken breast fillets, it is best to flip them halfway through the baking time. Carefully turn each chicken piece with tongs to avoid tearing the delicate meat. Flipping the chicken will ensure both sides cook evenly and prevent over-browning. Once flipped, continue cooking the chicken until the internal temperature reaches 165°F.
How do I tell if the chicken is cooked through?
The best way to determine if thinly sliced chicken breast fillets are cooked is to check when the thickest part of the largest piece reaches an internal temperature of 165°F using a food thermometer. It will be safe to eat chicken at this temperature. You can also check that the juices are running clear and that the chicken is no longer pink in the center. The chicken may continue to cook for a while after removing it from the oven, so be careful not to overcook it.
Following these tips will help you perfectly cook thin sliced chicken breast fillets in your oven. Be sure to check on the chicken regularly and use a food thermometer to ensure safety and ideal results. Enjoy your healthy, protein-packed meal!