Preheat oven to 350.put mix cake mix with 4 egg whites, oil ,zest and juices mixed with water to make one cup. Mix well.
Spray bread pan with Pam.pour batter in and bake 35 to 40 minutes till golden and tooth pick comes out clean. Check it at about 30 mins because all ovens are not the same
Let cool in pan then take out put on a plate
For sauce. In a pan put 1/2 cup sugar 4 1/2 tsp corn starch, zest from one orange and 1cup water heat to boil it will get thick stirring. Take off heat add juice from 1 orange. Slice cake pour sauce over it.