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Rainbow Gelatin Cubes

These layered jello cubes are fun to serve and to eat! I vary the colors to match the occasion. Kids of all ages snatch them up. —Deanna Pietrowicz, Bridgeport, Connecticut
  • Total Time
    Prep: 30 min. + chilling
  • Makes
    9 dozen


  • 4 packages (3 ounces each) assorted flavored gelatin
  • 6 envelopes unflavored gelatin, divided
  • 5-3/4 cups boiling water, divided
  • 1 can (14 ounces) sweetened condensed milk
  • 1/4 cup cold water


  • In a small bowl, combine 1 package flavored gelatin and 1 envelope unflavored gelatin. Stir in 1 cup boiling water until dissolved. Pour into a 13x9-in. dish coated with cooking spray; refrigerate until set but not firm, about 20 minutes.
  • In small bowl, combine the condensed milk and 1 cup boiling water. In another bowl, sprinkle 2 envelopes unflavored gelatin over cold water; let stand for 1 minute. Stir in 3/4 cup boiling water. Add to milk mixture. Spoon 1 cup creamy gelatin mixture over the first flavored gelatin layer. Refrigerate until set but not firm, about 25 minutes.
  • Repeat from beginning of recipe twice, alternating flavored gelatin with creamy gelatin layers. Chill each layer until set but not firm before spooning next layer on top. Make final flavored gelatin layer; spoon over top. Refrigerate at least 1 hour after completing last layer before cutting into 1-in. squares.
Nutrition Facts
1 piece: 25 calories, 0 fat (0 saturated fat), 1mg cholesterol, 13mg sodium, 5g carbohydrate (5g sugars, 0 fiber), 1g protein.

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  • Bertha
    Jun 27, 2020

    Instead of the milk and plain gelatin, we used flavored jello with 1 cup boiling water, stir to dissolve, then stir in 1 cup of non fat yogurt. We don't have any white stripes but it's still delicious.

  • jaybrenda
    Mar 20, 2020

    Love thus recipe, have made it for 40 years but not with sweetened condensed milk, made it with canned evaporated milk... not sure why this has sweetened condensed, wonder if it was typo???

  • Marta
    Jan 26, 2020

    The importance of “spooning” rather than pouring on the next layers should be over emphasized! I’m on layer one and poured...which has caused the layers to come together- that’s okay this is a trial run, a fun Sunday activity with my four year old!

  • lauripobanz
    Dec 30, 2016

    I can't count how many times I have made this recipe. School, church, potlucks, graduations... The kids and adults love them. It took a lot of trial and error to get it down, but I can do it in about 2 1/2 hrs. If they hadn't turned out perfect the first time I made them, I probably wouldn't have ever done it again. Tips: as soon as you pour out the colored layer, make the next one so that it cools a bit. Microwave slightly if the white layer gets too thick. It takes less time to set as you go along, only about 10 min. for the last 3 layers. The good thing is that once they are cut, the imperfections aren't so obvious. Try to find a level spot in the fridge. Jello boxes work great for leveling!

  • carol2925
    Dec 24, 2014

    Mine didn't look anything like the one in the picture. The layers were very thin and the last white layer started to thicken, so I put it over a bowl of warm water and that seemed to help a bit. Next time I'll try the microwave for that and maybe a smaller pan than 9x13 so the layers are thicker. Anyone have any comments on this?

  • Thisisapaininthebutt
    Apr 10, 2014

    I thought that I was supposed to wait 20 minutes for the flavored layers and 25 for the milk layer and when I got to the last milk layer, it had firmed up in my bowl so I couldn't pour it. The directions also say that it takes 30 minutes, and it took me hours! I am exhausted! I don't think that they are going to look like the photo when I cut them up...

  • aicenhour
    Mar 25, 2014

    How cute! My kids love these! One of those recipes that people think you took hours to make and lots of effort... Not so! I like using the different colors as well... Makes a stunning display.

  • kaciebugg
    Dec 22, 2012

    This recipe is super easy and always a hit at every gathering I make it for.

  • life2christ27
    Aug 6, 2012

    My kids gobbled them up! Delicious and super easy to make. I love how versatile this recipe is by changing the flavors of jello. It fits any occasion!

  • tommypoo
    May 26, 2011

    I'm making this recipe for the second time now. They were such a hit last time!!!