Rainbow Jello Recipe & Instructions (2024)

We celebrated Danika’s Birthday this year with an epic rainbow unicorn party and this stunning rainbow jellowas the star of the show! The kids always get to pick their theme and I think it’s become a favorite thing to do. I then take it and run with it! I’ll be sharing all of my ideas from her Rainbow Unicorn themed party and I had to start with my favorite (and the most awe-inspiring thing at the party),Rainbow Jello! It looks difficult, but while it is time-consuming, it is NOT difficult!

Rainbow Jello Recipe & Instructions (1)

This Jello turned out beautiful and was the talk of the party! If you are looking to bring a dish to your next party that will wow the crowd then this is it! If you are planning a rainbow party then this rainbow jello is the perfect rainbow food to serve to your guests! It may look incredibly difficult to make, but rest assured that this recipe is NOT difficult! It’s quite easy if you follow my simple step-by-step instructions. Keep in mind that this Jello takes an entire day to complete since you’ll be doing the layers one at a time and allowing them to set. Give yourself plenty of time to make it and don’t rush it! I would advise making this the day before your party or gathering. It will hold up just fine in the fridge!

Rainbow Jello Recipe & Instructions (2)

Rainbow Jello Recipe

The trick to making the rainbow jello turn out beautiful is to create thin layers and let them set completely before pouring the next layer. It’s very important to follow the directions exactly and let each mixture cool enough so that it doesn’t end up melting the layer below it when you pour it on. If you rush it and pour the next layer on top of your jello before it is set then you’ll end up with layers that run and are mixed. It will still taste fine, but it won’t achieve the layered look you are aiming for.

Rainbow Jello Recipe & Instructions (3)

Rainbow Jello Supplies

If you are planning on making this rainbow jello then make sure you have these ingredients on hand or order them now so you are ready to make this beautiful rainbow jello!

6 small packages (3 ounces) of different Jell-ORainbow Jello Recipe & Instructions (4) (I used rainbow colors however you can use as many or as few colors as you’d like and you can change them up for holidays)
4 packages Knox unflavored gelatinRainbow Jello Recipe & Instructions (5)(I recommend buying it in bulk in a can instead of all the little boxes-it’s cheaper that way)
1 (14 ounce) can Sweetened Condensed MilkRainbow Jello Recipe & Instructions (6)

You’ll also need a glass 9″ x 13″ pan or casserole to make this rainbow jello in.

Rainbow Jello Recipe & Instructions (7)Knox Original Gelatin, UnflavoredRainbow Jello Recipe & Instructions (8)Rainbow Jello Recipe & Instructions (9)Carnation Organic Sweetened Condensed MilkRainbow Jello Recipe & Instructions (10)Rainbow Jello Recipe & Instructions (11)Jell-O Gelatin 3oz All 22 Flavors In A Gift Box With Bonus Color Changing SpoonRainbow Jello Recipe & Instructions (12)Rainbow Jello Recipe & Instructions (13)Fire King Anchor Hocking 9×13 3qt Glass Baking Dish Cooking Oven Bake 13×9Rainbow Jello Recipe & Instructions (14)

Rainbow Jello Instructions

First layer: Mix 1 package of any flavor jello with 1 tsp Knox gelatin and 1 cup boiling water. Cool and pour into pan; refrigerate until set. Ensure that your fridge shelf is level so your layer sets evenly and doesn’t turn out thick on one side and thin on the other. It takes about 30 minutes to set up in the fridge before you can move on to the next layer. *Important* While waiting for your Jello to set, make the next layer and leave it to cool on the countertop.

Second layer: Mix 1 envelope Knox gelatin (or 2 tsp Knox if using the bulk can) with 1/2 cup hot water until dissolved. Add 1/2 can condensed milk and an additional 1/2 cup hot water. Once cooled pour 3/4 cup (just enough to cover the Jello and make a thin layer) of the milk mixture over the set jello and refrigerate until firm. It takes 30 minutes for this layer to set up in the fridge. As soon as you put the white layer in the fridge to chill make the next color jello so that it will have 30 minutes to cool on the counter.

Repeat first and second layer directions ending with a color jello layer. Half way through the process you will need to make the other half of your white mixture. The first time I made this I made the white layer all in one batch and ended up with a bowl of jelled white mix before I was done because it takes so long for the layers to set. If you find this happens to you then set your bowl of white mixture in another bowl of hot water (underneath it so it’s not mixing with your white mixture) and it will dissolve and liquify again.

Once you run out of white mixture then Mix 1 envelope Knox gelatin (or 2 tsp Knox if using the bulk can)with 1/2 cup hot water until dissolved. Add the other 1/2 can condensed milk and an additional 1/2 cup hot water. Once cooled pour 3/4 cup (just enough to cover the Jello and make a thin layer) of the milk mixture over the set jello and refrigerate until firm. Continue repeating layers until you are done.

*NOTE: I made my white layers thinner than my colored layers. Some readers have commented that they ran out of white mixture. If you make your layers thicker then you will run out. You may want to have a second can of sweetened condensed milk and an extra box of plain gelatin on hand in case you run out!

Once finished, cover with plastic wrap and refrigerate overnight to setuntil firm. Then slice into rectangles or squares and serve! Not only is it beautiful, but it tastes great too!

Rainbow Jello Recipe & Instructions (15)

I began my layers with purple then blue, green, yellow, orange, and red so they would be in correct rainbow order. Remember Roy G. Biv! Red, Orange, Yellow, Green, Blue, Indigo, Violet. We skipped indigo 🙂 In order for them to be red on top, purple on bottom, we started with purple and worked backwards. Of course you’ll also have a layer of white in between each.

Print the Rainbow Jello Recipe below!

Rainbow Jello Recipe & Instructions

Beautiful rainbow jello that can be modified for many different occasions! Easy to make and so many different color combinations you can do!

Print Recipe

Course Dessert

Cuisine Dessert

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Rainbow Jello Recipe & Instructions (16)

Rainbow Jello Recipe & Instructions (17)
Rainbow Jello Recipe & Instructions (18)
Rainbow Jello Recipe & Instructions (19)
Rainbow Jello Recipe & Instructions (20)
Rainbow Jello Recipe & Instructions (21)
Rainbow Jello Recipe & Instructions (2024)

FAQs

How do you layer different colors of jelly? ›

The key to layering up the jelly is never to let the previous layer fully set. It should still be wobbly, not completely firm, or the next layer won't stick. While your first layer is setting in the fridge, crack on with the next coloured jelly and pour it into your mould when the previous layer is just firm enough.

What is the ratio of jello powder to water? ›

Whisk together 1 cup (240 milliliters) of hot water with 1 packet of jello in a large bowl. Keep whisking until no powdery granules remain, about 2 to 3 minutes. If you are using a larger, 6-ounce (170 grams) packet of jello, use 2 cups (475 milliliters) of hot water instead.

How to make jello step by step? ›

How to Make Homemade Jello
  1. Bloom the gelatin. In a large bowl, add a 1/2 cup of the fruit juice and sprinkle the gelatin over the top. ...
  2. Stir in hot liquid. Next, add a 1/2 cup of boiled water to the bloomed gelatin. ...
  3. Mix and chill. Whisk the remaining 3 cups of fruit juice into the bowl. ...
  4. Slice and enjoy!
Apr 10, 2024

What are the ingredients in rainbow jelly? ›

More Info Ingredients: WATER, FRUCTOSE, SUGAR, KONJAC, CARRAGEENAN, POTASSIUM CITRATES, AGAR, SODIUM METAPHOSPHATE, POTASSIUM SORBATE, SODIUM CARBOXYMETHYLCELLULOSE, GLUCONO-δ-LACTONE, β-CAROTENE, β-APO-8'-CAROTENAL, FLAVOR, L-ASCORBIC ACID, TITANIUM DIOXIDE, LACTOSE, POTASSIUM CHLORIDE.

Can you add food coloring to jello mix? ›

Dissolve one of the small 3-ounce boxes of grape or black cherry jello along with 1 teaspoon of unflavored gelatin powder in the boiling water. Stir until the jello is dissolved. Add a few drops of black gel food coloring (affiliate link) until you achieve the desired color.

How far ahead can you make Jell-O? ›

You bet! Prepare the Jell-O in the pan and then store, covered, in the refrigerator until ready to serve. It's good for a couple days at least!

How do you inject color into jelly? ›

Apply a bit of pressure to the syringe to create a tiny color droplet at the needle tip before inserting it into gelatin. Insert the tool into gelatin with the needle pointing up. The needle side of the petal will be more uneven, always keep the needle on the side of the petal that is not going to be visible.

What happens if you don't add cold water to jello? ›

The reason gelatin needs cold water has to do with its gel-forming properties. When gelatin is mixed with hot water, the proteins can clump together, forming lumps that are difficult to dissolve. This is because the heat causes the proteins to denature, or change shape, which can prevent them from forming a smooth gel.

What is the best container to make jello in? ›

Plastic containers offer a great alternative to glass. They are not as sturdy but offer sufficient support and transparency to create beautiful desserts.

Can you use milk instead of water to make jello? ›

Use 1/2 of the hot water called for. Dissolve the jello, then use the milk instead of water for the added cold water. The milk jello will set on top making a foamy layer. I use to do this to make dessert look fancy for my kids when I only had a budget for jello.

What is the secret ingredient in jello? ›

Gelatin is made from animal collagen — a protein that makes up connective tissues, such as skin, tendons, ligaments, and bones. The hides and bones of certain animals — often cows and pigs — are boiled, dried, treated with a strong acid or base, and finally filtered until the collagen is extracted.

How to make jello taste better? ›

It's important to use the right amount of water, as using too much or too little can affect the taste and texture of the Jell-O. Additionally, you can add fruit, whipped cream, or other ingredients to enhance the flavor.

How do you get jello to harden? ›

Tips for Making Jello Set Faster

If you want to speed up the jello setting process, the effective way is to put your plastic serving bowl of gelatin jello mix in ice-cold water. Then, stir the bowl in the cold water and ensure the water doesn't get inside the container while dipping it in water.

Can you food Colour jelly? ›

Method. For each jelly colour, combine 1 sachet Gelatine Powder, cup caster sugar, 1 tsp Vanilla Extract, Food Colour Gel and 400ml boiling water in a 1 litre capacity heat proof jug. Whisk with a fork until sugar and gelatine have completely dissolved.

What gives jello its color? ›

Food colorings in jello can be either natural or artificial. Due to consumer demand, some products are now being made with natural colorings, such as beet and carrot juice. However, many jellos are still made with artificial food dyes.

How do you color gelatin? ›

Two easy ways to add natural color to the color base are saffron tea and beet juice. Keep in mind that natural colors come with their own distinct flavor and might react with other ingredients in the gelatin base.

References

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