He won't eat cake.
How can a child of mine not eat cake. My daughter at least eats frosting... but son, won't touch frosting if it is attached to cake. A cookie, well that is another story.
So last year, for his 2nd birthday - I decided that even though it broke with every childhood tradition. We would skip the cake and go for something that he would like, a tower of cookies.
Not sure what we'll do this year... I've got a couple of weeks to figure it out.