Easy Peasy Rainbow Half Cake

So the 5 year old turned 5 and a half year old last month! And he had asked for a half-birthday cake! How could I not bake him a cake after he says to me, "Mamma, I love you more than a baby walrus loves his mother!"
I scoured the net and found this Easy Peasy Half Rainbow Cake. 

He loves M&Ms (which kid doesn't!), he loves sprinkles and I had a box of pound cake mix sitting pretty in the pantry - so this cake was just perfect! 

When he saw the cake after coming home, he beamed and asked me why did I make a rainbow cake for him. I found myself saying "...because you are the rainbow of my life!" and both of us laughed and laughed and laughed!

Here are some step-by-step photos to show how (easily) I made this!

You will need half a cake (of your choice) that is sturdy enough to stand, M&Ms in the colors of rainbow or as many colors you want, butter-cream frosting, some sprinkles and some mini marshmallows. 

 Slather the top with butter-cream frosting and cover it with sprinkles. 

Cover the side facing you with butter--cream and chill it in the fridge for 20 minutes.

 Arrange the M&Ms on it. If the sprinkles get onto the butter-cream do not worry about it too much, the M&Ms will cover the imperfections. But if you really want to, use a toothpick to take the sprinkles out. Chill again for 20 minutes and lastly cover the other side with butter-cream if you want to. I just found it easier to do it this way. Spread a little more butter-cream on the bottom and make it stand on the cake board and add few mini marshmallows to emulate clouds in the sky. 

Now get ready to wow your child!

 

Inspiration from here!