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Stained-Glass Jello Cubes

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After creating the rainbow Jello cups, there was quite a bit of leftover Jello. Not wanting to waste a single bit, it was a great opportunity to experiment with stained-glass Jello.

If you need a colorful dessert for a unicorn party, baby shower, bridal shower, or any happy event, these layered cubes are a fun choice.

rainbow jello cubes in a glass pan

Rainbow stained-glass Jello

Of course, you do not need to start with the rainbow Jello cups in order to make stained-glass Jello. These tasty layered rainbow Jello cubes are excellent to make on purpose.

These bites are loaded with flavor, a fun texture, and look impressive to all the lucky guests who get to eat them!

bite out of a stained glass jello cube

Switch up the colors to match your theme or use whatever you have on hand.

If you do end up with leftover Jello from a different creation, simply layer what you have into a stained-glass looking jiggly treat.

rainbow jello cubes on a plate

What you need for stained-glass Jello

(exact ingredients in the recipe card below)

  • Small packages of six different colors of Jello.
    • The following flavors were used here:
      • cherry
      • orange
      • island pineapple
      • lime
      • berry blue
      • grape
  • water
  • unflavored gelatin
  • sweetened condensed milk
Steps to make layered Jell-o cups
These are the steps for the rainbow layered cups, but it’s the same concept.

Steps to make stained-glass Jello

Mix purple Jello with 1 cup of boiling water.

Stir well and pour into a 9 × 13 pan.

Refrigerate for 3 minutes.

Repeat with the remaining colors, pouring on top of each layer, ending with red.

Refrigerate for 1 hour.

Add gelatin and 1/2 cup of cold water in a bowl.

Let set for 5 minutes.

Add 1 1/2 cups of boiling water and mix well until completely dissolved.

Stir in the sweetened condensed milk and mix well.

Set aside for about 30 minutes to cool.

holding a rainbow jello cube

Cut Jello into 1/2″ cubes and pour into a separate 9×13 pan.

condensed milk over jello

Pour white gelatin over the rainbow Jello and refrigerate for 2 hours or until firm.

sweetened condensed milk over jello

Cut into 32 cubes with a knife and serve.

Jell-O Gelatin Sampler
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Recipe Notes and FAQ

Why is my Jello watery?

Watery Jello usually results from covering the Jello before it has cooled completely and set. Covering the Jello allows liquid from condensation to drip down into the mix, causing it to have too much water to set properly. 

Should you grease a Jello mold?

This recipe uses a simple glass dish, so no greasing is required. For molds that have edges and other fancy contours, spray the mold with a non-stick spray to keep it from getting stuck in the crevices. 

How long does Jello last?

Jello will stay fresh for 7 to 10 days when covered and refrigerated. 

Does boxed Jello go bad?

Unopened dry Jello mix has an indefinite shelf life when stored at room temperature. However, if the package has been opened, the mix will only last for about 3 months. Check the box for a “best buy” date and try to use it by then for best results.  

Yield: 32 cubes

Stained-Glass Jello

rainbow jello cubes on a plate

Layer up some Jello into colorful cubes that resemble stained-glass.

Prep Time 10 minutes
Additional Time 5 hours
Total Time 5 hours 10 minutes

Ingredients

  • 3 oz cherry jello
  • 3 oz orange jello
  • 3 oz island pineapple jello
  • 3 oz lime jello
  • 3 oz berry blue jello
  • 3 oz grape jello
  • water, divided
  • 2 packets, 0.25 oz each, unflavored gelatin
  • 1 can, 14 oz, sweetened condensed milk

Instructions

  1. Mix purple jello with 1 cup (0.24 l) boiling water. Stir well and pour into a 9×13 pan. Refrigerate for 30 minutes. Repeat with the remaining colors, pouring on top of each layer, ending with red. Refrigerate for 1 hour.
  2. Add gelatin and 1/2 cup of cold water in a bowl. Let set for 5 minutes. Add 1-1/2 cups boiling water and mix well until dissolved completely. Stir in sweetened condensed milk and mix well. Set aside for about 30 minutes to cool.
  3. Cut jello into 1/2" cubes and pour into a separate 9×13 pan. Pour white gelatin over rainbow jello and refrigerate for 2 hours or until firm. Cut into 32 cubes with a knife and serve.

Notes

Feel free to leave out the sweetened condensed milk. The rainbow cubes are adorable as is, but the white background enhances the "stained-glass" look.

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Nutrition Information:

Yield:

32

Serving Size:

1

Amount Per Serving: Calories: 83Total Fat: 2gSaturated Fat: 1gTrans Fat: 0gUnsaturated Fat: 0gCholesterol: 6mgSodium: 39mgCarbohydrates: 16gFiber: 1gSugar: 15gProtein: 2g

Nutrition facts are an estimate only.

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