Here is the recipe:
Make a Pillsbury Reduced Sugar cake mix just like the package directions, mix in 8 oz. of flavored yogurt (we used strawberry banana) and bake. We used two round cake pans. For the icing take a large container of light cool-whip and mix in another 8 oz. yogurt of the same flavor. I said it was healthier, I didn't say it was healthy:) We also added a little food coloring to make the icing pink. You gotta try it!