Buttercream Frosting

Hello there!  I’m not sure if Tuesday is just a second Monday but here is a little sweet and colorful icing recipe to add some rainbows to your day, whichever day it is.  What is your favorite color?  What about your favorite cupcake frosting color? Are they the same?

rainbow cupcakes 01

If I had to pick one, mine would be blue.  Is yours blue too?  Just guessing blue because according to this info graphic, it is universally the most common favorite color whereas orange is the least popular favorite color.  I used to love reading those color personality tests because blue is often associated with trustworthiness, peace and intelligence and who doesn’t want to be associated with those things right?  Although I have yet to read a negative personality test result for any color 🙂

Lately my daughter is on a rainbow kick, insisting that rainbow is her favorite color.  She used to say it was blue, green and pink but lately she has added purple, brown, orange, yellow, red and gray as her favorite color.  So when it came time to put icing on some rainbow sprinkle cupcakes, she naturally requested rainbow frosting.

plain pudding cupcakes

Buttercream Frosting Recipe

Adapted from My Cupcake Addiction


5 cups softened butter (250g/ 8.8oz / 2.5 sticks)
5 cups powdered sugar, sifted (600g / 21oz)
1 tsp vanilla extract (or extract of your choice)
1-2 tbsp whole milk, cold

Optional:  Food coloring if using.  The gel types would add less liquid to the icing


 1. Soften Butter if necessary

TIP:  You can soften butter in the microwave using the defrost setting for approximately 10-15 seconds.

I can’t believe how giddy I was when I found how to soften butter quickly because it is usually impromptu baking for this mommy (and, well, I am just plain forgetful sometimes).  This is how my solid stick of butter looked after 15 seconds on defrost:

soften butter

2.  Beat butter for 5+ minutes

Beat room temperature butter for 5+ minutes

3.  Add powder sugar 1 cup at a time and beat for ~2 minutes with each addition so that sugar is well incorporated.  Add 1/2 tbsp whole milk as required if icing is too thick.  When ~1/3 sugar has been incorporated, add vanilla extract.

4.  Add coloring if using.

wilton icing colors

I envisioned a pastel rainbow so I used a small small amount of red, blue and yellow gel dye (a toothpick pokes worth of each).  I put the icing into a plastic bag and then poke each color into the icing, then tried to mix the icing so that the yellow and blue would make green and the red (pink) and blue would make purple.

Pastel Buttercream Frosting

icing in bag 02

Pastel Buttercream Frosting

After I started frosting, I saw that I got a good amount of green but didn’t mix enough purple.  My daughter still okay’ed it but I made a mental note for more purple next time.

Pastel Rainbow Sprinkle Cupcakes

This icing can sit in room temperature for a few days.  If refrigerated it can last for 1-2 weeks.  It can also be frozen for later use but I haven’t tried that.

I got the recipe and directions from this awesome YouTube video by My Cupcake Addition:

p.s. I only made 2/5 the recipe because I didn’t want to put 5 cups of butter and 5 cups of powder sugar on the table for dessert for 3 people.  As a result, I only had 1 cup of icing and it was enough to frost ~5 cupcakes as pictured below:

rainbow cupcakes 02

So let me ask again, what is your favorite icing color?  I think I’m changing my answer from blue to rainbow too.  SMILE!  It’s Rainbow-day.


with love charlie