Rainbow Rice Krispies Treats Recipe

Indulge in a burst of color and sweetness with these vibrant Rainbow Rice Krispies Treats! Perfect for St. Patrick’s Day or any festive occasion, these no-bake treats are not only eye-catching but also incredibly fun to make. Kids and adults alike will delight in the layers of colorful marshmallow and crispy cereal. Get ready to create a magical dessert that’s as enjoyable to look at as it is to eat!


  • 6 Tbsp. unsalted butter, divided
  • 9 cups mini marshmallows, divided
  • 9 cups Rice Krispies Cereal, divided
  • Food coloring in red, orange, yellow, green, blue, purple


  1. Prepare the Pan: Line a 9×9 inch pan with wax paper.
  2. Melt Butter & Marshmallows: In a medium saucepan, melt 1 Tbsp. of butter. Add 1 & 1/2 cups of marshmallows and stir until smooth.
  3. Add Color: Add a few drops of one food coloring to the marshmallow mixture and stir.
  4. Mix with Cereal: Stir in 1 & 1/2 cups of Rice Krispies Cereal into the colored marshmallow mixture.
  5. Layer the Treats: Press the mixture into the prepared pan, smoothing out the top. Repeat the process for each color, cleaning the saucepan between colors.
  6. Finish & Cut: Once all layers are complete, remove the treat from the pan, peel off the wax paper, and cut into squares.

Prep Time: 15 minutes
Cook Time: 30 minutes (for setting layers)
Total Time: 45 minutes
Yield: 16 squares
Category: Dessert
Method: No-Bake
Cuisine: American
Diet: Vegetarian


  • Layering: Start with purple at the bottom and add each color in the order of the rainbow.
  • Serving: These treats are best served the same day to maintain the crispiness.
  • Fun Activity: Making this dessert can be a fun activity for kids, allowing them to learn about colors and layering.


  • Q: Can I use regular marshmallows instead of mini marshmallows?
    A: Yes, you can use regular marshmallows. Just ensure they are evenly melted.
  • Q: How long do these treats last?
    A: They are best enjoyed the same day but can be stored in an airtight container for up to 2 days.
  • Q: Can I use different types of cereal?
    A: Yes, while Rice Krispies are ideal for the best texture, you can experiment with similar puffed cereals.

Conclusion: Rainbow Rice Krispies Treats offer a delightful way to add a splash of color and joy to any gathering. Whether you’re celebrating St. Patrick’s Day or just in the mood for something fun and festive, these easy-to-make treats will surely be a hit. Enjoy the process and the delicious outcome! 🌈🍬

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