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Rainbow Fudge

5 from 11 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 11 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


    Have a question? Use the form below to submit your question or comment. I love hearing from you & seeing what you made!

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  1. mercedes main-duplechin says

    how long did each layer take to cool, before adding next layer?

    • Lisa Longley says

      I would say 10 minutes in the fridge

  2. Ms.Mona says

    Hi it is a pretty fudge, but do you know what you could add to flavor different layers ?And how much to use and you have an idea on which flavors would be good? Do you think Peanut Butter could be used for one flavor, or would it take away from the color?


    Ms. Mona

    • Lisa Longley says

      Hi Ms. Mona! If I were going to flavor this one I would use almond extract, vanilla extract, or orange extract and I would mix 1 to 2 tsps into the sweetened condensed milk :)

  3. Ny Martin says

    5 stars
    I love rainbow fudge (I found this while looking to print the recipe for a coworker) and I always flavor the different layers with dry flavorings such as powdered freeze dried fruit, grated spices, and pulverized dried citrus peel. I use pandan leaf extract for the green layer, which adds a rich vanilla-like taste. The flavors mesh interestingly as one eats the fudge.

    For my last batch I did in rainbow order: powdered straweberries, powdered orange peel, powdered ginger, pandan extract, nutmeg, and powdered blueberries. I’m thinking of using raspberries for the next batch.

  4. Larry says

    I made this for my grandson’s 11th birthday and all of his little friends went crazy over it. Most of the mothers asked for the recipe. I told them where I got it but gave it out freely. To say it was a hit might be an understatement!

    • Lisa Longley says

      I’m so glad to hear it and thank you for passing along my site!

  5. katy kelly says

    Making the fudge with my granddaughters this afternoon. Writing now to tell you that you are a hilarious writer.
    Katy Kelly

    • Lisa Longley says

      Thank you!

  6. Ruthann says

    5 stars
    I made this by the recipe and it was great

    • Lisa Longley says

      I’m so glad you liked it, Ruthann!

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5 Secrets to Stress Free Dinners



5 Secrets to Stress Free Dinners