Does anyone remember double rainbow guy? …Or am I dating myself here? I like to think he would be a huge fan of these cupcakes.
I recently made a batch of rainbow cupcakes in mason jars for someone’s birthday because nothing says “Happy Birthday” like layers of multicoloured cake topped with fluffy frosting and just in case that wasn’t overly cute enough – teeny tiny heart sprinkles. (Those may have been a bit much, but I regret nothing).
They were fairly easy to make. First you make your favorite vanilla cake batter (or just use white boxed cake mix – no judgement here). You’ll also need food colouring, sprinkles, icing and mason jars (I’ve seen these done with varying sizes). You could even tie spoons to the jars with ribbons if you’re feeling a bit ambitious.
Basic Vanilla Cake
Cream together 1 cup of unsalted butter and 2 cups of white sugar until smooth. Slowly beat in four eggs, then add two tablespoons of vanilla as well as 1 cup of milk.
Finally, mix in 3 cups of all purpose white flour and 3 tsp of baking powder. Mix until smooth.
This recipe will be enough for 12 small 250 ml mason jars like I made in the photo. If you’re using boxed cake mix, you’ll need two boxes.
Divide your icing into bowls, I only used four colours because I thought too many might be overkill for such small jars. I stuck with blue, green, yellow and red (layering them in that order). Add about one tablespoon or so per colour into each mason jar until they are half filled.
Place the mason jars in a shallow baking tray with about a half inch of water in it and bake at 350 degrees for 35 minutes or until the tops are set. Let the cakes cool, then add a layer of icing and sprinkles. I left space for the lids since they travel much easier and that way everyone got to open their own personal cupcake (jarcake?)
And that was it! If the cakes puff out too much over the jars just scoop the extra off with a spoon and cover with icing. (Then when noone is looking, you can eat all of the extra cake bits with a glob of icing).
These would be really cute for a birthday party, baby shower or wedding shower – any reason for rainbow cake is a pretty good reason in my humble opinion.