How to make Rainbow Ice Cubes with Food Coloring

I was so busy filling the mason jars with ice cubes during the party, that I didn’t get a chance to take a photo of the two giant bowls of rainbow ice cubes I made. But at least I can teach you How to make your Rainbow Ice Cubes with Food Coloring!

They were probably one of the kids favorite things from the party. But the formula is a tad complex. I didn’t know if I could handle this after the Rainbow Cake. I am totally joking. If you can make a rainbow cake, you can make these in your sleep.



  • Food coloring
  • Water
  • Measuring cup
  • Ice cube tray
  • Freezer 

How to make Rainbow Ice Cubes

I made two full trays of each color of the rainbow for the actual party. But if you want a smaller batch you can do them like this.

Please ignore the world’s ugliest kitchen countertop under that.

Insert into Mason Jar.

Pour in clear fizzy drink (i.e. Sprite, 7Up, Mineral water or plain water).

Even if your party isn’t a Rainbow party, do these! The kids LOVED them. Just match your food coloring  of choice to your theme.

Or make them with your Kool Aid flavor of choice and just add water and you have instant flavored water.

I’m doing shapes next time too.

Mind you they’d melt in minutes but who cares. They’re so fun!

And most importantly, easy. 

Tomorrow. The Rainbow Birthday Party Post. Finally.


  • Reply
    September 4, 2012 at 3:27 pm

    These are crazy fun and I think I could totally handle the steps!

    • Reply
      Alex @ northofseven
      September 4, 2012 at 4:31 pm

      L.O.L. There’s a grown up party just waiting for these. Somehow I am thinking a vodka tonic vs sprite…

  • Reply
    Victoria Elizabeth Barnes
    September 4, 2012 at 4:21 pm

    They look like candy! The colors are surprisingly vivid… I would have thought they’d be a lot more translucent.

    • Reply
      Alex @ northofseven
      September 4, 2012 at 4:30 pm

      Gel food colouring!! World of difference. The ones with regular food colouring turned out a lot lighter.

  • Reply
    September 6, 2012 at 1:33 pm

    I am soooo gonna try to get these fixed up for my next party… Especially if I can get a hold of some gel food colouring around here.

    • Reply
      Alex @ northofseven
      September 6, 2012 at 1:51 pm

      Vodka + tonic + lime + coloured ice cubes? Oh that’s m inside voice.

      • Reply
        September 6, 2012 at 2:03 pm

        Haha I like your inside voice – swap it with the outside voice 😉

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