Sep 18, 2021 · How long should I bake chicken breast? Bake it for a short time - 15-20 minutes. Medium, 8-oz pieces will need about 20 minutes in a 450°F oven. For smaller, 6-oz pieces, 15 minutes should be enough. The best way to make sure the chicken is done is to use an instant-read thermometer. Aim for an internal temperature of 165°F. Dip assorted chicken pieces into a mixture of buttermilk and hot sauce, then roll the chicken in crushed cornflakes before baking until golden brown. Get the Recipe: Chicken Baked in Cornflake Crumbs