Rainbow Rice Krispies: make the arch shaped Rice Krispie treats with every color of the rainbow! Form, slice, and enjoy.
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These rainbow cookies are perfect for celebrating. Make them for a St. Patrick's Day celebration, your next rainbow birthday party, art or unicorn themed party, or just for anytime. Or make these rainbow Rice Krispies to celebrate the first day of spring. I love their soft colors, and they're easy to make. This rainbow rice krispie treats recipe is a great one to make with kids too. If you're looking for rainbow desserts, these festive treats are the perfect addition to any special occasions.
Easy To Make
These rainbow Rice Krispies are really easy to make, there's just quite a few steps involved. I think they're worth the effort, because they're really so cute. This fun treat is sure to impress friends and family. And what could be yummier than a good old rice krispie square? This no bake dessert is the perfect easy recipe.
Rainbow Shaped Treats
Rather than putting these colorful treats into a baking pan and making squares out of them, we form then into the perfect rainbow arches. We started with a long purple tube like piece that was our center, and then built our each color, arch, by arch. It's pretty easy to shape. There's just one small problem, which is easy to fix. The rice krispies are super sticky when they're warm, and you need to work them warm so that they're nice and plaliable. To fix this problem you can coat your hands with a little butter, or spray with non-stick cooking spray.
Pastel Rainbows
I love the pastel colors in these rainbow cookies. W found that the inexpensive liquid food colorings from the grocery store worked the best for this. I know most bakers recommend the gel food coloring for more vibrant colors, but I really like the light pastel shades of these cookies. If you're looking for the more intense bold bright colors, feel free to use the gel colorings, and add more of them until you're happy with the colors.
How To Make A Rainbow
These colorful rainbow rice krispies treats are made as one long arched tube, and then sliced. To make them, you're going to make each of the colors of the rainbow separately and add them layer by layer until you've built the whole rainbow. Once they're set slice them to reveal the perfect rice krispie rainbows.
Rainbow Rice Krispies Party Favors
These rainbow treats are a great addition to party. They would be a really fun idea to use as a party favor, just package them up individually in a cello bag and tie with some rainbow ribbon for gift giving.
These rainbow cookies are a crowd pleaser. And once you make your cereal treats rainbowed shaped, you might never want to go back to make them into a boring square shape in a baking dish again.
Recipe
Rainbow Rice Krispie Treats
Ingredients
- 7 ½ cups rice krispies
- 4 ½ tablespoon butter
- 400 g bag of regular marshmallows
- food coloring
- optional: gold sprinkles and white chocolate
Instructions
- Purple Layer
½ tablespoon butter
8 large marshmallows, or 1 cup of mini marshmallows
1 cup of rice krispies
purple food coloring (or combine red and blue)
Start by creating the purple layer of the rainbow as the first layer. Combine ½ tablespoon butter with 8 large marshmallows, or 1 cup of mini marshmallows. Heat in a small pan over medium heat, until all the marshmallows and butter are melted. Remove from the heat and add purple food colouring (two drops of red and two drops of blue) and stir to fully combine. Then stir in 1 cup of rice krispies.
While it's still warm, turn the mixture out onto a piece of wax paper or parchment paper, and form it into a long tube like shape, about 14 inches long. Use a spatula to shape it whiles it's hot, and then your hands once it's cool enough. Coat your hands with butter, or spray them with nonstick cooking spray to avoid them sticking to the rice krispies. - Blue Layer
½ tablespoon butter
8 large marshmallows, or 1 cup of mini marshmallows
1 cup of rice krispies
blue food coloring
Next create the blue layer of the rainbow with your second batch. Combine butter and marshmallows. Heat in a small pot over medium heat, until all the marshmallows are melted. Remove from the heat and add the food coloring into the gooey marshmallows mixture and stir to fully combine. Then stir in the rice krispies.
While it's still warm, turn the mixture out onto another piece of parchment paper sprayed with cooking spray, and form it into a rectangle shape that's about 14 inches long -the same length as the purple centerpiece. Flip it onto the purple layer and use your hands to shape it into an even layer and form the blue arch. - Green Layer
¾ tablespoon butter
10 large marshmallows, or 1 ⅓ cup of mini marshmallows
1 ¼ cup of rice krispies
green food coloring
Next create the green layer of the rainbow. Combine the butter with the marshmallows. Heat in a small pot over medium heat, until all the marshmallows are melted. Remove from the heat and add food colouring to the melted marshmallows and stir to fully combine. Then stir in the rice krispies.
While it's still warm, turn the mixture out onto another piece of parchment paper sprayed with cooking spray, and form it into a rectangle shape that's about 14 inches long -the same length as the purple centerpiece. Flip it onto the blue layer and use your hands to shape it evenly and form the green arch. - Yellow Layer
¾ tablespoon butter
10 large marshmallows, or 1 ⅓ cup of mini marshmallows
1 ¼ cup of rice krispies cereal
yellow food coloring
Next create the yellow layer of the rainbow. Combine the butter with the marshmallows. Heat in a small pot over medium heat, until all the marshmallows are melted. Remove from the heat and add food colouring and stir to fully combine. Then stir in the rice krispies.
While it's still warm, turn the mixture out onto another piece of parchment paper sprayed with cooking spray, and form it into a rectangle shape that's about 14 inches long -the same length as the purple centerpiece. Flip it onto the green layer and use your hands to shape it evenly and form the yellow arch. - Orange Layer
1 tablespoon butter
12 large marshmallows, or 1 ⅔ cup of mini marshmallows
1 ½ cup of rice krispies
orange food coloring
Next create the yellow layer of the rainbow. Combine the butter with the marshmallows. Heat in a small pot over medium heat, until all the marshmallows are melted. Remove from the heat and add food colouring and stir to fully combine. Then stir in the rice krispies.
While it's still warm, turn the mixture out onto another piece of parchment paper sprayed with cooking spray, and form it into a rectangle shape that's about 14 inches long -the same length as the purple centerpiece. Flip it onto the yellow layer and use your hands to shape it evenly and form the orange arch. - Red Layer
1 tablespoon butter
12 large marshmallows, or 1 ⅔ cups of mini marshmallows
1 ½ cup of rice krispies
red food coloring
Next create the yellow layer of the rainbow. Combine the butter with the marshmallows. Heat in a small pot over medium-low heat, until all the marshmallows are melted. Remove from the heat and add food colouring to the melted marshmallow mixture and stir to fully combine. Then stir in the rice krispie cereal.
While it's still warm, turn the mixture out onto another piece of parchment paper sprayed with cooking spray, and form it into a rectangle shape that's about 14 inches long -the same length as the purple centerpiece. Flip it onto the orange layer and use your hands to shape it evenly and form the red arch. - Let the colorful rainbow rice krispie treats set and then cut into slices ½ - ¾ inch thick. Optional: add some gold sprinkles to one side as some gold at the end of the rainbow. Be sure to add them right after you cut the slices, so that it's sticky enough for the sprinkles to stick. Or dip one end in some melted chocolate or candy melts and then sprinkle with gold sprinkles.
- Store these at room temperature, in an airtight container, or wrapped with plastic wrap.
Nutrition
With these amazing rainbow Rice Krispie treats, life really is a party!
More Cookie Inspiration
You might also like these Peanut Butter Thumbprint Cookies recipe here.
You might also like these Easy Vanilla Shortbread Cookies here.
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