I am not a big fan of deserts, nor am I a cook or pastry chef. However, I will take a stab at this. The body of the cake is not your biggest problem, the icing usually is. That being said, try to look for a receipt that uses cool whip as an icing. You may even want to use cupcakes or muffins. You may even find diabetes friendly recipes for cakes.
Good luck and HAPPY BIRTHDAY!
