Wash hands with soap and water.

Slice the orange to make round slices and set aside.

Place 4 chicken breasts in a 1-gallon sized plastic zipper bag.

Add the liquid to the bag with the chicken.

Zipper the bag closed and gently massage to mix the liquids and evenly cover the chicken inside the bag.

Let the chicken marinate in the bag in the refrigerator for 4 hours or more.

Preheat oven to 350 °F.

Spray shallow oven-proof baking dish with non-stick spray large enough to place chicken in single layer in the baking dish.

Remove the chicken from the bag, place in a single layer in the baking dish. Throw away the zipper bag from the chicken.

Bake chicken uncovered for 20 minutes.

Turn the chicken over, cover with orange slices that were set aside, and bake 15 more minutes (total of 35 minutes).

Check with a food thermometer. Temperature should reach 165 °F.