A 375 degrees F oven, and that's because chicken breast cooks through
evenly at this temperature, making for tender, juicy results.
How do I tell when chicken breast is done cooking?
We’d be remiss not to mention instant read thermometers, probably your best tool to determine whether or not your chicken is done. Insert an instant read thermometer in the thickest part of the breast — you’re looking for a final temperature of 165 F. If you don’t have an instant read thermometer, you can also cut into the thickest part of the chicken with a paring knife to make sure there’s no visible pink meat. After you’ve cooked your chicken breasts to doneness, make sure you rest them for at least 10 minutes before slicing to lock in juice and flavor.