Lucky Charms Treats

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These fun Lucky Charms Treats are just like Rice Krispie Treats but made with Lucky Charms cereal. Bright colorful marshmallows combined with the buttery crunch of the toasted oats cereal. They are the perfect way to celebrate St. Patrick’s Day, a delicious after-school snack, and are perfect for school parties!

And if you want a rainbow or unicorn treat for a themed party these are just what you are looking for!

two squares of these lucky charms Rice Krispie treats

Who doesn’t love gooey marshmallows? These treats are a lucky twist on Rice Krispies Treats!

Instead of using puffed rice, you can use just about any type of cereal to create these delicious snacks!

Lucky Charms Cereal Treats are made with toasted oat cereal and fun marshmallow bits combined to make a fun and festive treat for any occasion. They are so vibrant– they’re a party just waiting to happen!

Why we love these Lucky Charm Treats Cereal Bars:

Only 4 Ingredients: This tasty treat is super easy to put together with only four simple ingredients and made in less than 15 minutes!
No-Bake Treats: The perfect no-bake recipe! Just melt the marshmallows with butter and mix everything in. You don’t have to heat the oven or the house, to have a delicious sweet treat.
2 Kinds of Marshmallows: This snack packs a double dose of marshmallows with the cereal marshmallows and the fluffy puffy ones!
Festive and Fun: The bright colors make these a fun treat everyone will enjoy. They are a hit with kids and adults alike! Who can resist those Lucky Charms marshmallows?

Just keep in mind these treats are a little more crunchy in texture than traditional Rice Krispie Treats, but just as ooey gooey and magically delicious!

Ingredients in the recipe

Picture of ingredients for Lucky Charms treats - marshmallows, butter, vanilla extract, and Lucky Charms cereal.

The complete list of ingredients and amounts can be found in the recipe card below.

Lucky Charms Cereal: You can use the original lucky charms (one of my favorite cereals) for a bright colorful treat. For St. Patrick’s Day use the St. Patrick’s Day (all green and gold) Lucky Charms.
Marshmallows: You can use regular or mini marshmallows. I go with the mini because I like to use a cup of unmelted mini marshmallows in with the treats.
Butter: I use salted butter for my bars. It gives a hint of saltiness that goes well with all the sweetness. If you want to control the salt, use unsalted butter and ¼ teaspoon of salt, if desired.
Vanilla extract: This adds another layer of delicious flavor.

How to make lucky charms treats:

This is a super simple recipe to make! It is a little on the sticky side, but it is well worth it for the amazing treat you are going to get! It’s a pretty straightforward recipe you will make again and again.

✱ Be sure to see the recipe card below for exact ingredients and instructions!

Prepare the Pan: Butter or line a 9 X 9 baking pan with parchment paper so that it hangs over the side for easy removal. Then set it aside.
Melt the Marshmallows: In a saucepan over low-medium heat, melt butter and add in the marshmallows (reserving 1 cup of mini marshmallows).
Keep Stirring: Keep stirring as the marshmallows melt slowly on low. When they are fully melted, remove from heat and quickly stir in the vanilla extract.
Pour in Cereal & Mini Marshmallows: Quickly pour in the cereal and that cup of extra marshmallows into the melted marshmallows.
Mix: With a spatula, stir until the cereal is coated with the marshmallow mixture.
Press into Pan: Pour the mixture into the buttered 9 X 9 pan. Gently press the mixture into the baking pan with the back of the spatula. You can also use your hands (buttered or sprayed with cooking spray) or the butter side of the butter wrapper.
Let Cool & Enjoy: Let them cool and set (firm up). Then slice and enjoy all the yum!

Tips

Use fresh ingredients. It is so important that your marshmallows are fresh. They will not melt properly if they are old. Also, if the cereal is stale the treats will taste stale as well. So make sure you check the dates!
Hold out a cup of mini marshmallows: Adding the whole marshmallows give some extra fluff to the bars. Pillowy marshmallow bits just give it something extra!
Pan Size: This recipe makes a nice thick bar. If you want a thinner bar use a 9 X 13 dish.
Prevent Sticking: Make sure to use parchment paper or butter the dish well to prevent the gooey bars from sticking to the pan.
Slightly wet or buttered fingers before pressing bars into the prepared pan. This will make it easy to press down and will prevent it from sticking to your hands. You can also use nonstick spray or butter. If you don’t want to use your hands you can spray a spatula or use the stick butter wrapper to press gently press them down.
Clean edge: To have a nice clean edge cut the bars on all sides. The marshmallow settles around the outside a bit as it sets. If you are serving for a party, this makes for a pretty presentation.
To make them Extra Festive: Save a few marshmallows from the cereal for garnish. Gently press them onto the top for even more color. You can also put sprinkles on top as well.

Sliced Lucky Charms treats on a wooden tray.

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Frequently Asked Questions:

How many marshmallows do I need?

To make this recipe you will need a 16-ounce bag of mini marshmallows. This is about 9 cups.

Can I use large marshmallows?

Yes. However, I prefer the mini ones as they melt faster and seem a little easier to manage. Just keep in mind that you need to replace one cup with mini marshmallows for the inside of the treat (if desired). Or just melt all 16 ounces of the large ones, if you don’t have mini ones.

Can I make Lucky Charms Marshmallow Treats ahead of time?

Yes! Make sure you keep them in an airtight container. I would suggest you wait to cut them into bars before serving. They are most delicious on the 1st or 2nd day and are freshest if eaten within 3 days. But will last up to 5 days at room temperature.

Are Lucky Charms Treats Gluten-Free?

Yes! Lucky Charms cereal is gluten-free. You will just need to check the marshmallow brand that you buy to be sure they are gluten-free as well.

What is in Lucky Charms Cereal?

Luck Charms cereal is made with frosted oats and colored marshmallows. The marshmallows look like stars, hearts, clovers, blue moons, horseshoes, rainbows, red balloons, and unicorns.

Variations of St. Patrick’s Day Lucky Charms treats

If you are looking for something for St. Patrick’s Day on March 17th, these are just the thing you need for your celebration! Grab a box of the green St. Paddy’s Day-themed Charms and you have St. Patrick’s Day Lucky Charms Treats.
There is also a honey clover flavor to try.
Festive Colors: Want more color? Add green food coloring or the color you want for your fun treats.
Chocolate Lucky Charms: You can also get a St. Patrick’s Day edition in chocolate as well as a chocolate haunted edition of lucky charms for the perfect Halloween sweet.
Dipped Cereal Bars: Try dipping the bars in white chocolate or milk chocolate. You can also try colored melting wafers to highlight the holiday color.

Honestly, this Lucky Charms Rice Krispies Treats recipe will work with almost any cereal. So give different ones a try.

Storage instructions

Storage: Store the treats in an airtight container at room temperature for up to 5 days. I like to line my container with parchment or wax paper as these treats are quite sticky on the bottom.

You can keep them in the refrigerator for up to 10 days. Just remove them to come to room temperature so they are not too hard to eat.

Freeze: These lucky charms bars can also be frozen. Wrap them tightly in plastic wrap, place them in freezer Ziploc bags, and freeze for up to a month. Remove to thaw before serving.

Lucky Charms Marshmallow Treats on a cutting board with Lucky Charms cereal scattered in the background.

More St Patrick’s recipes to try

St. Patrick’s Day Lucky Chow is addictively scrumptious!
Buttery Beer Bread – A quick bread recipe! Even if you are not a bread baker I promise you can make this. So flavorful and by changing the beer you change the flavor profiles. You can even make it with non-alcoholic beer.
Slow Cooker Corned Beef and Cabbage
Baked Reuben Sliders
Bangers and Mash
Stout Fudge Brownies from The Fresh Cooky.

More sweet recipes you may love

Lucky Charms Treat cut and stacked on a mini cake stand with milk and a vibrant rainbow hand towel in the background.

I hope you enjoy these magically delicious treats! They are sure to bring you lots of luck, my friends!

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Two stacked lucky charms treats stacked on a wooden tray.

Recipe

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Lucky Charms Treats – Just like a Rice Krispie Treat, but made with Lucky Charms cereal. Bright colorful marshmallows combined with the buttery crunch of the toasted oats cereal make the perfect sweet treat!

Ingredients

▢ 6 Tablespoons butter
▢ 16 ounce bag mini marshmallows, divided (reserve 1 cup)
▢ 1 tsp vanilla extract
▢ 7 cups Lucky Charms Cereal