Lucky Charms Rice Krispie Treats are a fun twist on the classic marshmallow cereal snack. They mix the crispy crunch of Rice Krispies with the colorful marshmallows from Lucky Charms, making every bite sweet, crunchy, and a little magical. The marshmallows add just the right pop of color and soft chew that makes these treats extra special.
I love making these treats for gatherings or just to brighten an ordinary day. They come together quickly and easily, which is great because sometimes you want something fun and sweet without a lot of fuss. Plus, the marshmallows remind me of childhood and sunny weekend mornings, so there’s something really comforting about it.
My favorite way to serve these Lucky Charms Rice Krispie Treats is with a big glass of cold milk, perfect for dipping. They’re a big hit with kids and grown-ups alike, and I find that the rainbow marshmallows always spark a bit of joy and surprise. These treats are a simple way to make snack time a little more cheerful and colorful.
Key Ingredients & Substitutions
Rice Krispies Cereal: This is the base that makes the treats light and crispy. If you want a gluten-free option, look for gluten-free puffed rice cereals as a replacement.
Mini Marshmallows: These melt easily and hold everything together. You can swap with regular marshmallows but cut them into smaller pieces to help them melt evenly.
Lucky Charms Marshmallows: These add fun color and extra sweetness. If you can’t find these, any colorful cereal marshmallows will work, or you can add sprinkles on top for a similar effect.
Butter: Adds richness and helps melt the marshmallows smoothly. You can replace with coconut oil for a dairy-free version, but it may slightly change the flavor.
How Do I Get the Perfect Sticky But Not Messy Texture?
Melting and mixing marshmallows well is key to treats that hold together but aren’t gooey.
- Melt butter over low heat to avoid burning.
- Add mini marshmallows gradually and stir continuously until smooth.
- Remove from heat before adding cereal to preserve crunch.
- Use a buttered spatula or wax paper to press down the mixture firmly without it sticking to your hands.
Press firmly but don’t compact too much—you want the treats light and airy, not dense.

Equipment You’ll Need
- 9×13-inch baking dish – I use this size because it gives the treats a good thickness and shape.
- Large pot – perfect for melting butter and marshmallows without spilling.
- Rubber spatula – I like it because it’s flexible and helps evenly press the mixture into the pan.
- Parchment paper or cooking spray – makes removing the treats easy and keeps them from sticking.
Flavor Variations & Add-Ins
- Swap mini marshmallows for peanut butter or chocolate marshmallows for a different sweet flavor.
- Add chopped nuts or chocolate chips into the mixture for extra texture and richness.
- Mix in a few drops of vanilla or almond extract to enhance the flavor.
- Top with colorful sprinkles or mini candies before the treats set for a festive look.
Lucky Charms Rice Krispie Treats
Ingredients You’ll Need:
- 6 cups Rice Krispies cereal
- 1 ½ cups Lucky Charms marshmallows (reserve some for topping)
- 4 cups mini marshmallows
- 3 tablespoons unsalted butter
- Optional: Cooking spray or butter for greasing the pan
How Much Time Will You Need?
This recipe takes about 10 minutes to prepare and mix, plus 30 minutes to cool and set. In just 40 minutes, you’ll have colorful, chewy treats ready to enjoy!
Step-by-Step Instructions:
1. Prepare Your Pan:
Lightly grease a 9×13-inch baking dish with cooking spray or butter, or line it with parchment paper. This will help you remove the treats easily once they’re set.
2. Melt Butter and Marshmallows:
In a large pot over low heat, melt the butter. Add the mini marshmallows and stir continuously until they melt completely and the mixture is smooth.
3. Mix in Cereal and Lucky Charms Marshmallows:
Remove the pot from heat and quickly stir in the Rice Krispies cereal, ensuring every bit is coated. Gently fold in the Lucky Charms marshmallows, saving some to sprinkle on top.
4. Press into Pan and Cool:
Using a buttered spatula or a piece of wax paper, press the mixture firmly and evenly into your prepared pan. Sprinkle the reserved Lucky Charms marshmallows on top and gently press them in. Let the treats cool at room temperature for about 30 minutes to set.
5. Cut and Serve:
Once set, cut into squares or rectangles. Serve and enjoy your magical, crunchy, and sweet Lucky Charms Rice Krispie Treats!
Can I Use Regular Marshmallows Instead of Mini Marshmallows?
Yes, you can! Just chop regular marshmallows into smaller pieces so they melt more evenly and quickly.
How Should I Store Leftover Treats?
Store leftovers in an airtight container at room temperature for up to 3 days. Avoid refrigerating as it can make them hard.
Can I Make These Treats Ahead of Time?
Absolutely! Prepare them a day in advance and keep them covered at room temperature to maintain freshness.
What’s the Best Way to Prevent Treats From Sticking to My Hands or Utensils?
Use a buttered spatula or lightly grease your hands with butter when pressing the mixture into the pan to keep it from sticking.
