This is the recipe that was given to me by a very nice CC poster:
1 white cake mix (she used DH, I used Pillsbury so I don't think it matters)
3 egg whites
1 whole egg
1 small box white chocolate instant pudding (I used vanilla-that's all I had!)
1/2 cup vegetable oil
1 1/4 cups water or water/milk mixture
1 tsp almond flavoring (optional - I didn't use it)
Bake at 350 F until it springs back when lightly pressed.
It turned out really well, very yummy! Happy baking!