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Rainbow Fudge

5 from 9 votes

posted: 02/29/16

This post may contain affiliate links. Please read my disclosure policy
This post may contain affiliate links. Please read my disclosure policy

This Rainbow Fudge is super easy but will wow everyone! So easy the kids can do it!

The Rainbow Fudge are stacked on top of each other and the top most fudge has a bite into it.

All of last week Nathan was gone on a work trip. And when I’m the only grown up in the house  I have the tendency to  . . . . lose it. So one day I saw that our front door was unlocked. In a matter of seconds I convinced myself that I had left the door unlocked for the last week and a half and obviously someone had come into the house, knowing the door was unlocked, and was just in the basement laying in wait for me.

I had this thought approximately one minute before I was headed to bed.

The Rainbow Fudge is on a baking sheet in cube shapes showing the distinct layers of red, orange, yellow, green, blue, and purple (in that order).

The next morning I got up really really early to work out. I’m running on the treadmill . . . . in the basement . . . where I’m convinced that the culprit is just waiting for the right minute to kill me.

Suddenly I see something out of the corner of my eye. I keep telling myself that it’s just the light reflecting off my wedding ring. I keep seeing it, and keep seeing it, when I look over.

You guys.

It’s a spider that has dropped down from the ceiling and is now dangling inches from my ear. I momentarily forget I’m running on a moving treadmill, jump to slap it between my two hands, land back down on the treadmill, and nearly trip and kill myself.

You guys. I’m so happy Nathan’s home.

And I’m still alive.

A stack of the Rainbow Fudge in cube shapes showing the distinct colors of red, orange, yellow, green, blue, and purpler (in that order).

Okay, this fudge isn’t scary at all. Not even to make. It’s SUPER EASY!

It’s based on the idea that you can mix together three cups of chocolate chips and a 14 ounce can of sweetened condensed milk, and you can make fudge! So I broke it down into sixths. That amounted to a half cup of white chocolate chips and 3 TBSPs plus 1 tsp of sweetened condensed milk for each color. Each color took about 8 drops of color, with the exception of red. That took 16 drops. Obviously for purple you need  4 drops of red and 4 drops of blue. And for orange you need 4 drops of red and 4 drops of yellow. You make one layer at a time, and you might want to space them out a little and not make them back to back as I did. I made them in my microwave, and by the end, it was over heating a little. You add it one layer at a time and once it’s dry you just pop it out, cut it, and look at your beautiful creation.

Then eat it. :)

5 from 9 votes

Rainbow Fudge

(tap # to scale)


  • 3 cups white chocolate morsels divided
  • 14 oz sweetened condensed mil divided
  • food coloring


  • Line an 8 by 8 inch glass baking dish with aluminum foil.
  • In a small bowl combine 1/2 cup white chocolate chips and 3 TBSPs plus 1 tsp sweetened condensed milk. Microwave for 30 seconds and stir until smooth. Stir in 4 drops of red food coloring and 4 drops of blue food coloring to make your purple layer. Spread it as evenly as possible. Set the fudge in the refrigerator to cool while working on the next layer.
  • Repeat the process adding instead 8 drops of blue food coloring. Continue the process until you have made and added all six colors. I used 16 drops for red. (Note: I did each layer one after another, but you might have to wait in between to not overheat your microwave.)
  • Once the fudge has completely cooled, remove it from the pan, peeling off the aluminum foil. Cut the fudge into squares and store outside of the refrigerator for up to two weeks in an airtight container.
Author: Lisa Longley

did you make this

Rainbow Fudge

I’d love to see what you made! Tag me @lisasimplejoy and hashtag it #simplejoyrecipes!

The Rainbow Fudge is on a baking sheet in cube shapes showing the distinct layers of red, orange, yellow, green, blue, and purple (in that order).

Hi! I'm Lisa Longley, and I am committed to giving you simple dinner ideas and recipes that are easy to make; recipes that will fill your home with joy. I am the owner and author of SimpleJoy.com and I'm so glad that you are here.

Reader Interactions


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  1. Dorothy @ Crazy for Crust says

    I used to be so scared when Mel was gone, then we got the dog. The dog who was afraid of the 9lb cat, but still… :) This fudge is SO CUTE!

    • Brenda K Cooper says

      can you just do the purple part?

      • Lisa Longley says

        You can, but it would be easier to do it with purple candy melts from the craft store.

  2. Mir says

    Nearly undone by a spider, huh? No shame in that. We’ve all been there. But treadmills can be dangerous when you’re fighting off the wildlife!
    This fudge is AMAZING. And you had to do math to get it right. I’m so impressed!

  3. ally says

    How stinkin’ fabulous is this!! Aside from the spider, I’m all in! Thanks for sharing your amazing creativity!!

    • Lisa Longley says

      Ha! Thanks Ally!

  4. Liz says

    LOL—it’s amazing how easily we can spook ourselves. What a cool rainbow treat!!!

  5. heather @french press says

    I’m always convinced there is someone in the shower just waiting to jump out – what a fun st patty;s day treat – although I know with 100% certainty that mine would not be nearly this cute

  6. Trish - Mom On Timeout says

    I am just loving this fudge Lisa! Rainbow everything!

  7. Alice @ Hip Foodie Mom says

    Holy crap! this is amazing!!!! and so pretty!

  8. nicole @ I am a Honey Bee says

    So pretty! This would be great for a kid’s party

  9. Ashley - Baker by Nature says

    My nieces will go wild over this one! So pretty.

  10. Sue says

    I just made this fudge for my granddaughter for her birthday. It is colorful, but the taste is awful…way TOO sweet. It tastes like melted white chips, which is pretty what it is. It needs some kind of extract flavoring…probably vanilla. And heating the chips at 100% power is too high; the white chocolate will seize up. It’s best to melt it at 50% power.

    • Lisa Longley says

      Sue, I’m so sorry you didn’t like it. You certainly could use an extract to flavor it more. Probably the best way to do that would be to add the extract directly to the sweetened condensed milk. And you are right, it does taste like white chocolate chips . . . which the people I gave it to really enjoyed. Microwaves do vary, but I microwaved it exactly as described and because I melted it with the sweetened condensed milk I had no problems.

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5 Secrets to Stress Free Dinners



5 Secrets to Stress Free Dinners