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Jell-O Building Blocks

Jell-O Building Blocks
Jell-O Building Blocks
Jell-O Building Blocks
Messiness: Medium
Age Range: 3y - 9y
Estimated Time: 1-2 hours

Activity Designer

Marcella Campbell
7 Projects

Can you really make edible building blocks? Yes! They're pretty, fun, and require no specialized skills (unless you count heating and pouring). They're a great rainy day activity, and they make really fun party favors. The biggest challenge is keeping them uneaten long enough to play with them!

What You'll Need

  • jello (1 3 oz. box) - We made 3 2-oz. blocks per color. Regular ice cube trays are 1-oz.
  • nonstick pan - optional, but it made cleanup much easier!
  • spatula

How We Did It

Jell-O Building Blocks

You'll want everything handy before you start. For blocks, you can use cube-shaped candy molds or just an ice cube tray. (Keep in mind that the molds we used make 2- and 4- oz. cubes, while standard ice cube trays make 1-oz. cubes.) You'll need at least one 3-oz. package of Jello and 2 small unflavored gelatin packets per color. (For 6-oz. packages of Jello, you'll need to use 4 gelatin packets.) If you're using a silicone tray, you may want to set it on a baking sheet so it's easy to move once it's full of hot gelatin.

Jell-O Building Blocks
Add 1/3 cup water to the nonstick skillet. Sprinkle 2 packets of unflavored gelatin and 1 box of Jello over the water. Stir to combine. This is a fun step for kids, because they're always surprised by the color change when the water is added!
Jell-O Building Blocks
Grown-up step: Heat the gelatin mixture over low heat until the gelatin is dissolved, about 3-4 minutes.
Jell-O Building Blocks
Grown-up step: Pour the gelatin mixture into your mold or ice cube tray. 
Jell-O Building Blocks
Repeat, if desired, until you have as many colors as you like! We made six colors: red, orange, yellow, green, blue, and peach.
Jell-O Building Blocks

Carefully place your mold in the refrigerator. Refrigerate until completely cold and set, about an hour.

Jell-O Building Blocks

Grown-up step: To unmold, very carefully pry the blocks out with a toothpick or butter knife. (Don't worry -- they're much sturdier than they look.)

Jell-O Building Blocks

If desired, dust the bottoms lightly with cornstarch or powdered sugar so they don't stick together when you stack them.

Jell-O Building Blocks

Now you have edible building blocks! You can build a tower or a small house.

Jell-O Building Blocks
And when you're ready to clean up...just eat them!

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