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Rainbow Rice Krispies

Rainbow Rice Krispies: make the arch shaped Rice Krispie treats with every color of the rainbow! Form, slice, and enjoy.

rainbow Rice Krispies

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.

rainbow Rice Krispie treats

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.

rainbow Rice Krispie cookies

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 rainbow Rice Krispies

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.

Yield: 20 cookies

Rainbow Rice Krispie Treats

rainbow Rice Krispies
Prep Time 10 minutes
Cook Time 12 minutes
Additional Time 10 minutes
Total Time 32 minutes

Ingredients

  • 7 1/2 cups rice krispies
  • 4 1/2 tbsp butter
  • 400 g bag of regular marshmallows
  • food coloring
  • optional: gold sprinkles and white chocolate

Instructions

  1. Purple Layer

    1/2 tbsp 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 1/2 tbsp 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.
  2. Blue Layer

    1/2 tbsp 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.
  3. Green Layer

    3/4 tbsp butter
    10 large marshmallows, or 1 1/3 cup of mini marshmallows
    1 1/4 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.
  4. Yellow Layer

    3/4 tbsp butter
    10 large marshmallows, or 1 1/3 cup of mini marshmallows
    1 1/4 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.
  5. Orange Layer

    1 tbsp butter
    12 large marshmallows, or 1 2/3 cup of mini marshmallows
    1 1/2 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.
  6. Red Layer

    1 tbsp butter
    12 large marshmallows, or 1 2/3 cups of mini marshmallows
    1 1/2 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.
  7. Let the colorful rainbow rice krispie treats set and then cut into slices 1/2 - 3/4 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.
  8. Store these at room temperature, in an airtight container, or wrapped with plastic wrap.

Nutrition Information:

Yield:

20

Serving Size:

1

Amount Per Serving: Calories: 150Total Fat: 4gSaturated Fat: 3gTrans Fat: 0gUnsaturated Fat: 1gCholesterol: 8mgSodium: 95mgCarbohydrates: 28gFiber: 0gSugar: 15gProtein: 1g

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.

rainbow rice crispies

With these amazing rainbow Rice Krispie treats, life really is a party!

rainbow cookies

More Cookie Inspiration

You might also like these Peanut Butter Thumbprint Cookies recipe here.

peanut butter thumbprint cookies

Also check out these Toffee Chocolate Chip Cookies recipe here.

You might also like these Easy Vanilla Shortbread Cookies here.

easy vanilla shortbread cookie recipe

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