This birthday trifle cake is a fun layered cake in a trifle bowl. It has alternating layers of a super moist cake with sprinkles and a cheesecake cream cheese pudding mixture and is then topped with whipped topping, sprinkles, and cookies.
Prepare the cake according to the instructions on the back of the package, except use milk instead of water and 1 extra egg. Also, add the rainbow sprinkles to the cake batter. Mix well, then bake in the oven according to the instructions on the back of the package.
After the cake is baked, let it cool completely. Then cut the cake into 18 squares inside the baking pan. Mentally divide the cake into thirds. Set the cake aside for now.
In a medium-sized bowl, add the cheesecake instant pudding with the milk. Using an electric mixer, whip for about 2 minutes until the pudding begins to thicken, but you can still pour it. Set aside for now.
In a different bowl, add the cream cheese with half of the whipped topping. Whip until combined. The other half of the whipped topping will be the last layer of the cake.
Add the cheesecake pudding to the cream cheese and whipped topping. Whip on medium speed for about 2 minutes with the electric mixer until all is blended well.
The First Layer
Use a 3-quart trifle bowl and place 1/3 of the pieces of the squares of cake around the bottom of the bowl. Break apart some of the pieces of cake to make them fit better in the center of the bowl, but don't crumble them too small.
The Second Layer
Spread half of the cheesecake cream cheese pudding mixture around the bowl over the top of the cake pieces. Shake some sprinkles over the top.
The Third Layer
Lay another 1/3 row of cake around the bowl.
The Fourth Layer
Spread the last half of the cheesecake cream cheese pudding mixture evenly in the bowl. Shake more sprinkles on the top.
The Fifth Layer
Put the last of the cake around the bowl. The cake can be above the top of the dish just a bit, don't smash it down.
The Last Layer
Spread the rest of the whipped topping all around the top of the cake. Shake some more sprinkles on the top.
Garnish
Push the Oreo golden sandwich cookies into the whipped topping around the center of the top of the cake, pressing them into the whipped topping. They should look like they are standing up.
Put the cake in the refrigerator for at least 4 hours before serving.
Keep any leftover cake in the refrigerator.
Notes
For the garnish at the top of the cake, you can use any of your favorite cookies that you prefer.