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Easy Rainbow Cupcakes

Posted by  ·  March 8, 2016  ·  Last Updated: June 20, 2018

These are the most easy rainbow cupcakes ever! You don’t have to dye multiple colors of frosting to make rainbow frosting! You only need plain white frosting and some sanding sugar. If you want more rainbow ideas , my daughter loved sewing this hanging rainbow cloud, so easy to make and they make a great party favor.

easy rainbow cupcakes

You will need a rainbow of sanding sugar!

sanding sugar sweetbakingsupply.com

Pour colored sanding sugar (not coarse)  in small bowls or jumbo baking cups. Fill a pastry bag fitted with a large plain round tip (about 1/2 inch opening) with white buttercream frosting.

sanding sugar rainbow cupcakes supplies

How to make easy rainbow cupcakes

Frost the top of the cupcake clear to the edge. Hold tip close to cupcake to use less frosting. Dip top of cupcake in red sugar.

how to make rainbow frosted cupcakes

Make another layer of frosting right on top of the red layer. This time don’t go clear to the edge. Bring the frosting in at least 1/4 of an inch.

rainbow cupcakes with sanding sugar how to

Dip the cupcake in the orange sanding sugar.  Rock the cupcake so the edges are completely coated.

sanding sugar dipped rainbow cupcakes

Repeat process with yellow sanding sugar and so on…….

sanding sugar rainbow frosted cupcakes

until you have a beautiful sparkly rainbow cupcake.

rainbow frosting

They make great St Patricks Day Cupcakes when you add a fondant shamrock.

sanding sugar rainbow shamrock cupcakes

Rainbow and Pot of Gold Cupcakes

rainbow pot of gold cupcakes

Pot of Gold Cupcakes

pot of gold cupcakes



Filed Under: Recipes, St Patrick's Day

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  1. vicky
    Thursday, March 10th, 2016
    Hey these look so beautiful I have a dear friends birthday and my heart is set out to make them now. running to the shops to get started ! yay thank you xoxo