This post contains affiliate links. Please read our disclosure policy.
The Cutest No-Bake Treat for St. Patrick’s Day: Lucky Charms Treats are basically the fastest way to make something festive and adorable with almost zero effort. They’re soft, gooey, and packed with that nostalgic cereal crunch – plus the marshmallow charms make them instantly St. Patrick’s Day ready (or honestly… just a fun anytime treat).
These are my go-to when I need a last-minute party dessert that still looks like I planned ahead. Melt butter + marshmallows, fold in Lucky Charms, press into a pan, and you’re done!
Bonus: if you save a handful of charms to sprinkle on top, they look extra cute and photo-worthy!
Don’t want all the extras in a recipe post? We provide a skip to recipe button in the top left corner, as well as a clickable table of contents, just below, to help make this page easier to navigate.
At Sweet C’s, I add lots of tips in all of my recipes – because I am a home cook without any formal training, and I find I am more confident making dishes when I understand why it works, and what each ingredient means to the flavor of a recipe. My goal is for even the most beginner home cook to feel empowered in the kitchen.
Table of contents
How to Make Lucky Charms Cereal Bars
My Homemade Lucky Charms Treats are super simple – prep in just minutes, let them set, then slice into cheerful squares for parties, holidays, or spontaneous snack attacks!
If you love these treats, be sure to check out my easy no bake cheerios bars treats, too and our White Chocolate Lucky Charms Hot Chocolate Bombs Recipe!
Lucky Charms Treats Ingredients
To make these cereal bars, you’ll need:
- Marshmallows: Marshmallows are the key ingredient in Lucky Charms Treats, providing the gooey, sweet base that holds everything together. They melt when heated and create a sticky, stretchy texture that binds the cereal pieces, making it easy to form the treats.
- Lucky Charms: Lucky Charms cereal is the star of this dish, adding both taste and visual appeal. The combination of crunchy oat cereal pieces and colorful, sweet marshmallow shapes creates a delightful contrast in textures and flavors, making these treats fun and enjoyable for all ages.
- Butter: Butter adds a rich, creamy flavor and smoothness to the dish, enhancing the overall taste. It also helps with the melting and mixing process, ensuring the marshmallows and cereal are evenly combined and preventing the treats from becoming overly sticky or hard to handle.
Steps to Make Lucky Charm Krispie Treats
Prep. Prepare a 9×9 pan by greasing it or rubbing the inside with butter. Set aside.
Melt. In a large pot, add butter and begin to melt on medium. Add marshmallows and stir constantly until mallows melt. You may see slight browning- if your mallows aren’t fully melted as the sugar browns, pull them off the stove and continue stirring. They should melt from the heat.
Mix. Add lucky charms to pan and stir well to combine.
Set. Pour mixture into the 9×9 baking dish and let cool.
Enjoy! When set, cut and enjoy!
Tips to Making Perfect Lucky Charms Treats
Use low heat. High heat can make marshmallows stiff and the treats turn hard.
Save some marshmallows. Stir a handful in at the end for extra gooey bites.
Don’t overmix. Gentle folding keeps the cereal from crushing and helps the treats stay soft.
Press lightly into the pan. Packing them down too hard makes them dense and firm.
Butter your hands or spatula. It keeps everything from sticking while you spread the mixture.
Add extra charms at the top. Makes them extra cute (and very photo-friendly).
Other Saint Patrick’s Day Treats
You can find the rest of our Saint Patricks Day recipe ideas here.
If you love this easy recipe please click the stars below to give it a five star rating and leave a comment! Please also help me share on Instagram, Facebook, and Pinterest!
Share on Facebook
SharePin this now to find it later
Pin ItFollow on Instagram
Only have 30 minutes to get dinner on the table? Sign up for my 30 minute dinner plans direct to your inbox!
Find and shop my favorite products in my Amazon storefront here!
Homemade Lucky Charms Treats
Equipment
Ingredients
- 3 cups marshmallow bits, if using jumbo, make them heaping cups
- 4 cups Lucky Charms
- ¼ cup butter, salted
Instructions
- Grease a 9×9 baking pan well and set aside.
- In a large pot, add butter and begin to melt on medium.
- Add marshmallows and stir constantly until mallows melt.
- You may see slight browning- if your mallows aren't fully melted as the sugar browns, pull them off the stove and continue stirring. They should melt from the heat.
- Add lucky charms to pan and stir well to combine.
- Pour mixture into the greased 9×9 dish and let cool.
- When set, cut and enjoy!
- If you are saving them for later cut them and wrap them in plastic wrap individually.
Video
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
Lucky Charm Krispie Treats FAQs
Cereal treats start to harden right away if not tightly wrapped in plastic wrap or an airtight plastic bag to preserve freshness. We recommend enjoying within 2 days for best texture.
Some people like to dip cereal bars in a bit of chocolate or white chocolate after making them. It gives an extra layer of flavor, and we love to dip in green nonpareils fr Saint Patricks Day!
Usually from overheating the marshmallow mixture or pressing the treats too firmly into the pan.
Yes. They’re best within 1–2 days, but you can make them the day before a party.
Store airtight at room temp for up to 3 days. Avoid the fridge—it can make them firm.
You can, but the texture is best fresh. If freezing, wrap tightly and thaw at room temperature.
Absolutely—sprinkles, mini chocolate chips, or a drizzle of white chocolate are all great.
I’m going to make these for a employee potluck at work but had a question – I’ve made these before (using someone else’s recipe) but they got rock hard. Will these hold up and stay soft and chewy if I make them the night before to bring to work the next day?
Yes but only if you cut them up and wrap them up individually in plastic wrap that’s the trick!
I couldn’t find the size of pan I needed anywhere in your post. I used a 9×13 glass pan and it was far too big. I’d suggest an 8×8 square pan for a single recipe or a 9×13 if doubling.
Thank you for pointing that out, I will fix it in the recipe, its an 8×8 pan, I use this brand, its really good for sticky recipes like these!
I love that you’re teaching your little kids to cook. I too allow my young grand daughters to help me with everything I do in the kitchen and they are always excited with our projects, take pride and so enjoy whatever we make. One warning is that if you have girls with long hair, tie their hair back away from their face and hanging down their front. Hair could get mixed into food! Or catch fire if they’re stirring at the burner! We are going to make your Lucky Charm Treats next week. This week we baked delicious easy peasy chocolate brownies from scratch.
Wow, this looks so delicious! I cant wait to make them 🙂
can we freeze them for a month ?
Hey Amanda – If you freeze them, I wouldn’t cut them into squares, so less of the bars are open to frostbite/drying out. Make sure you take all the extra air out of whatever bag you use to freeze it in, and let it refrost naturally (probably on the counter, outside of any bag it was frozen in). The only issue that might arise when defrosting is the rice cereal getting soggy from ice crystals – so i’d put it on a cookie cooling rack or something that will let any water drip down from the treats.