Jiggly Stained-Glass Gelatin Cubes

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

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 stained-glass Jelly Cubes

Of course, you do not need to start with the rainbow gelatin cups in order to make stained-glass gelatin. These tasty layered rainbow jelly 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!

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

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

What you need for stained-glass Gelatin

(exact ingredients in the recipe card below)

• Small packages of six different colors of gelatin.
  • The following flavors were used here:
    • cherry
    • orange
    • island pineapple
    • lime
    • berry blue
    • grape
• water
• unflavored gelatin
• sweetened condensed milk

Steps to make stained-glass gelatin

Mix purple packet 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.

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

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

Cut into 32 cubes with a knife and serve.

Recipe Notes and FAQ

Why is my gelatin watery?

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

Should you grease a gelatin 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 gelatin last?

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

Does boxed gelatin go bad?

Unopened dry gelatin 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.  

Gelatinous Creations

• Galaxy Jelly Cups
• Rainbow Jelly Cups
• Layered Valentine’s Day Gelatin

Rainbow Treats

• Rainbow Rice Crispy Pinwheels
• Rainbow Unicorn Fudge
• Rainbow Popcorn

Don’t forget to subscribe to the blog for more magical recipes like this one.

Let me know if you make stained-glass gelatin!