Rainbow cake

This cake turned out so fabulous. I love the bright colors and my silly putty fondant. I have been wanting to try a marshmallow fondant recipe, but I must not have added enough powdered sugar because the fondant was a little, well silly putty like. It was firm enough to stay put, but soft enough to be molded into the arch shape so it turned out perfect for my needs. It will also be fun to play with and eat later on with the kids. I will be putting the recipe right next to my peanut butter play dough recipe.
So to make the cake I used a basic white cake mix (I wanted to make one from scratch, but it didn't happen this time.) and then I divided it up into six bowls. Then I used gel food coloring (it works so much better then liquid food coloring) to color the mix in the bowls. Then I spooned the mix into a bundt pan. I tried to do a few cool designs, but they didn't stay when the cake baked up, that's ok though because it still looks AWESOME! I really like the bundt pan because I was able to cut the cake in two and have two arches to make into rainbows.For the fondant I melted a bag of marshmallows with a few Table spoons of water and stirred it all together. Then I separated it into six bowls and again used the gel food coloring. You need to make it a little brighter then you want the end result because the powdered sugar will lighten it up a bit. I mixed in some powdered sugar then kneaded in more until I had what I wanted. (I used crisco like the recipe said to keep the fondant from sticking to my hands.) Then I rolled it into little "snakes" and patted it flat onto the cake.
After refrigerating the cake for a few hours to stiffen the fondant up again, (you do not need to do it that long, but I had time to spare and it needs to stay refrigerated. ) I set the rainbows up and piped clouds around the base. I really like the way it turned out and now that it's finished it's off to my friends rainbow themed birthday party.