Rainbow Rice Krispie Treats 
Colorful, gooey, and bursting with happiness—these layered marshmallow bars are a guaranteed party hit!
Rainbow Rice Krispie Treats are more than just a dessert—they’re edible fun! With layers of bright, eye-catching color, gooey marshmallows, and that familiar cereal crunch, these bars instantly liven up any gathering. Whether you’re making them for a birthday party, school event, pride celebration, or just because you want to add some color to your day, these treats are easy to make and even easier to love.
Let’s dive into the joy of making (and eating) these playful bars!
Ingredients
This recipe makes one 9×13-inch pan of layered rainbow Rice Krispie treats (about 18–24 squares depending on how you slice them).
2 bags (32 oz total) mini marshmallows
1½ sticks (12 tbsp) unsalted butter
9 cups Rice Krispies cereal
Gel food coloring in red, orange, yellow, green, blue, and purple
Nonstick spray or extra butter for greasing
Optional: Sprinkles or edible glitter for topping
Layer Colors (You’ll divide the ingredients across these 6 layers)
Each color layer uses:
5⅓ cups mini marshmallows (approx. 1/3 of a bag)
2 tbsp butter
1½ cups Rice Krispies cereal
1 drop (or more) food coloring per color layer
Instructions
1. Prepare Your Pan & Station
Lightly grease a 9×13-inch pan with nonstick spray or butter.
Set out 6 medium bowls for each color layer.
Get your food coloring ready, along with a spatula and pot for melting.
2. Create the Color Layers
You’ll work in batches for each colored layer. To speed things up, you can use the microwave or stovetop, but we recommend the stovetop for best control and texture.
➤ For Each Color Layer (Repeat 6 Times):
In a medium saucepan over low heat, melt 2 tbsp butter.
Add 5⅓ cups mini marshmallows, stirring until fully melted and smooth.
Remove from heat and stir in your food coloring—adjust until the desired shade is achieved.
Fold in 1½ cups Rice Krispies and stir until well coated.
Gently press the mixture into the pan using a greased spatula or wax paper. Press evenly but don’t compact too hard to keep them chewy.
Allow the layer to set for a minute or two before adding the next color on top.
Order of colors: Purple → Blue → Green → Yellow → Orange → Red (bottom to top or reverse—your call!)
3. Cool Completely
Once all layers are in, let the treats sit at room temperature for at least 1 hour before slicing. You can also chill them in the fridge for 30 minutes if you’re short on time.
4. Slice & Serve
Use a sharp knife to cut the treats into squares or rectangles. Wipe the knife clean between cuts for crisp, colorful lines.
Add sprinkles or edible glitter on top for extra pizzazz!
Pro Tips
Use fresh marshmallows for the best gooey texture—older ones don’t melt as smoothly.
Gel food coloring gives the most vibrant hues without watering down the marshmallow mixture.
Don’t press too hard when layering—light pressure keeps them soft and chewy.
Work quickly with each color; once the marshmallows cool, the mix stiffens and becomes harder to spread.
When to Serve Rainbow Rice Krispie Treats
These treats are perfect for any occasion that could use a pop of color:
Birthday parties
Pride celebrations
Holiday events (like Easter or Spring Festivals)
Kids’ baking projects
Dessert tables or bake sales
Baby showers or gender reveal parties (use just pink or blue layers)
Variations
Want to mix things up? Try these fun twists:
Unicorn Edition 
: Add pastel colors and top with shimmer sprinkles.
Chocolate Drizzle 
: Drizzle melted white or dark chocolate across the top.
Confetti Krispies 
: Mix colorful sprinkles into the marshmallow layer before pressing.
Fruity Flavor 
: Use flavored marshmallows or mix a dash of fruit extract (like lemon or strawberry) with each color.
Why You’ll Love These Treats
No-bake, low-fuss: Just melt, mix, and layer—no oven required.
Kid-approved: These treats are perfect for little hands and huge smiles.
Customizable: Change the colors, add decorations, or shape them however you want.
Sweet & nostalgic: The classic taste of Rice Krispies with a colorful twist.
Make-ahead magic: Stays fresh for days, making it perfect for parties and prep.
Storage
Store the treats in an airtight container at room temperature for up to 5 days. Place parchment paper between layers to prevent sticking.
Avoid refrigerating for long periods, as it can make the treats too hard.
Final Thoughts
Rainbow Rice Krispie Treats aren’t just fun to look at—they’re joy in edible form. Gooey, colorful, and irresistibly nostalgic, they’re the perfect no-bake dessert that lights up any room they’re in. Whether you’re celebrating a special occasion or just need a dose of delight, these layered beauties deliver.
So grab those marshmallows, get your food coloring ready, and get ready to make dessert literally more colorful!
Let the rainbow magic begin!