Oh if you can get a cake from Two Little Red Hens, that would be amazing. It is one of my favorite bakeries in the city and their cakes are really moist, comforting, flavorful, etc. You won't be disappointed. It's everything a birthday cake should be and more. Nothing too complicated but done at the highest level.
Two Little Red Hens
1652 2nd Ave, New York, NY 10028