Teal Ombré Cake

I am still looking for the best white cake recipe so I took my father-in-law's birthday as another opportunity to try a recipe in my collection.  I also wanted to attempt a ridged (for lack of a better word) ombré technique around the sides. I think it turned out fairly well!  Plus, when you cut into it, people are always impressed by the ombré layers inside, even though it is so simple.