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These Lucky Charms cereal bars are a no-bake treat made with gooey melted marshmallows, buttery goodness, and a full box of Lucky Charms cereal. They come together in about 15 minutes of hands-on time and are perfect for St. Patrick’s Day or any time you need a fun, festive treat.
Remember the toy in the box?!
I’ve been on a major ‘no bake cereal bar kick around here lately. My marshmallow stash and cereal cabinet are honestly out of control…I’m literally always ready to feed a crowd with cereal treats at a moment’s notice!
These Lucky Charms Rice Krispies Treats are a fun little concoction that are really perfect for any time of the year, but extra fun around St. Patrick’s Day!
Seriously, these are so good and just have a very nostalgic Saturday morning cartoon watching while fighting with your little brother for the toy from the cereal box feel to them. <– They’re a whole vibe.
When I was developing this recipe, I made sure to use a full box of Lucky Charms cereal (I hate the little bits of cereal leftover taking up space and going stale in my cabinets!) and packed in as many marshmallows as is humanly possible for an ultra gooey cereal bar that still has that crunch from the dehyrdated marshmallows.
3 Reasons You’ll Love This Recipe
- No baking required. Just melt, mix, press, and wait. That’s it.
- One very special ingredient. While the extra dehydrated marshmallows to press on top are listed as optional in the ingredients list, can I please just demand that you use them? Yes, they’re an extra purchase, yes, you might have to order from Amazon, yes, they’re super worth it.
- The whole box, no waste. We use the entire box of Lucky Charms so you’re not stuck with a half-eaten bag of cereal going stale in the cabinet.
Ingredient Notes:
Lucky Charms – You’ll use a whole box (10.5 ounces) of Lucky Charms cereal. The crunch of the cereal + the dehyrdated marshmallows really is magically delicious.
Marshmallows – Like most cereal bars, you’ll need regular marshmallows. We’ll also have the marshmallows that come in the box of cereal. But the SECRET INGREDIENT that makes these so fun is to add in extra dehydrated cereal marshmallows. You can also get them at Walmart. They’re just like the kind in the cereal but this way you have even more of the good stuff!
Butter & Vanilla – You’ll also need some butter, and some vanilla extract! The butter will get melted together with the mini marshmallows to create the sweet, sticky binding that holds these Lucky Charms bars together!
Dehydrated Cereal Marshmallows!
These dehydrated marshmallows really add something special to these cereal bars, but you can also add them to a bowl of cereal, use them in baking, or just eat them by the handful. We’ve even stuck a bag in Easter baskets for a fun treat.
How to Make Lucky Charms Treats:
Marshmallow Mixture: To get started begin melting the butter in a large saucepan, and then dump in the mini marshmallows! Keep stirring until it has just melted then remove from heat and mix in the vanilla extract.
Helpful Tip!
Soft and chewy, not hard and crunchy!
If you’ve ever made Rice Krispies Treats or cereal bars with marshmallow and they’ve turned out hard and crunchy rather than soft and chewy, you may have overcooked the marshmallow!
Melt it over medium heat, but only do so until it is JUST melted! Remove from heat as soon as it has so you end up with perfectly soft and gooey treats!
Cereal: When you’ve prepared the marshmallow mixture you can pour in the Lucky Charms cereal along with a handful of extra dehydrated cereal marshmallows. Stir everything together until the marshmallow cereal mixture is well combined!
Finish: With the mixture ready you can add it to a greased 9×13 baking dish and start pressing it all down into the dish until it forms an even layer.
If you’re using the dehydrated cereal marshmallows you can press some of them down into the top of the Lucky Charms treats to finish them off! Let them cool for an hour before slicing and serving.
Helpful Tip!
Spray a piece of wax paper with non-stick spray and use that to press the cereal mixture into place. The cereal bars won’t stick to your hands or the wax paper!
Are the dehydrated cereal marshmallows necessary?
Those dehydrated marshmallows add a fun pop of color to the cereal treats and the little crunch of them is serious marshmallow perfection, but I recognize that they are an extra purchase. Feel free to skip them entirely – these treats will still be tasty thanks to the marshmallows in the box of Lucky Charms!
Another (cheaper) option would be to buy a second box of Lucky Charms and raid it for the marshmallows. Cheaper than buying a bag of ‘mallows, but good luck getting your kiddos to eat Lucky Charms without the magical shapes!
Storage
Room temperature: Store in a sealed container for up to 3-4 days.
Freezer: Wrap individual bars in plastic wrap, place in a freezer bag, and freeze for up to 2-3 months. Thaw at room temperature before serving. The texture won’t be quite the same, but you can freeze these.
Lucky Charms Treats
Ingredients
- 4 tablespoons butter
- 16 ounces marshmallows
- 1 teaspoon vanilla
- 10.5 ounce box Lucky Charms cereal
- 1/2 cup dehydrated cereal marshmallows optional
Instructions
- Heat the butter in a large pot over medium heat until melted.
- Add the marshmallows and cook, stirring constantly, until the marshmallows have melted. Remove from the heat and stir in the vanilla.
- Add the cereal and 1/4 cup of dehydrated marshmallows to the mixture and stir to coat.
- Press mixture into a greased 9×13 dish.
- Press remaining 1/4 cup of cereal marshmallows over the top of the cereal bars, if desired.
- Let set for at least one hour to fully cool before slicing and serving.
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