I made this First Birthday Cake for my nephew’s 1st birthday. It was Cookies ‘n Cream, with cream cheese frosting. One box of white cake mix and chopped Oreo cookies and 1 can of cream cheese frosting. Follow directions on box and then add chopped Oreo’s.
I used a 9×13 inch pan. When it was cool I cut it in the shape of a one and then added the frosting. I added the blue coloring to the can of frosting in a bowl with a hand mixer. I also added about 1 tablespoon of Crisco. I added powdered sugar until it was right for decorating.
The green, orange, and white icing was left over from another cake I did.