Even though these are my favorite, they’re not the only treat we make for the holiday.

For more fun treats, check out our long list of St. Patrick’s Day desserts.

Lucky Charms Marshmallow Treats Recipe

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Lucky Charms Marshmallow Treats Ingredients:

You can get the full list of ingredients with measurements in the recipe card below.

Butter – We prefer unsalted butter because the cereal already has plenty of salt in it.
Mini marshmallows – The mini marshmallows melt quicker and are easier to incorporate into your treats than full-size marshmallows. But if all you can find are large marshmallows, those will work. They’ll just take a little longer to melt.
Lucky Charms Cereal – You can use the brand or the generic version. You can also use the chocolate version if you prefer.

How To Make Lucky Charms Marshmallow Treats:

Making these is the same as making rice cereal treats, so if you’ve ever made those before, you know exactly what to do. But if you don’t, I’m here to help.

Melt the butter in a large pot on the stovetop over medium low heat.

The larger the pot, the easier the rest of this will be for you. I love using a Dutch oven in general because of how it heats, but it doesn’t have enough room to stir all of the cereal.

And I think that’s the biggest problem people make when they’re making marshmallow treats. They don’t use a bowl that’s big enough for what they need. So stirring becomes frustrating and then people don’t want to make these.

So, heed my warning, and use a bowl that’s large enough.

Add in the mini marshmallows.

Stir constantly with a bamboo spoon until the marshmallows are completely melted. This should take about five minutes.

Remove the pot from the heat.

Two quick tips. One: Marshmallow sticks less to a bamboo spoon than it does to a metal one, so using a wooden spoon makes stirring a little easier.

Two: Add a little bit of butter onto the spoon first, especially if you’re using something other than a wooden spoon, like a rubber spatula. This will help the sticky marshmallow slip off.

Quickly pour in the Lucky Charms cereal into the melted marshmallows.

Stir until the Lucky Charms are completely coated in marshmallow.

You want to make sure that you’re getting the marshmallow on the very bottom of the bowl incorporated into the cereal as well. If not, you’ll end up with large, sticky pockets of marshmallow in your treats.

Lightly coat a baking dish with butter.

Here’s a fun tip. Save the wrapper from the butter that you melted before. Then, use the butter residue that’s left behind on that wrapper to grease pan.

That’s a good way to stretch your budget because you’re not using additional butter.

Pour the cereal and marshmallow mixture into the prepared pan.

Flatten it so it’s an even layer.

You want to flatten it a little bit so that everything sticks together after it cools. But, you don’t want to push it down too much because that makes the marshmallow treats very dense, breaks up the cereal pieces, and you lose that beautiful airiness that marshmallow treats are known for.

You can either push it down with the back of your bamboo spoon or with your hands.

Many people suggest putting that in a sheet of parchment paper down and pushing on top of that to keep your hands clean.

Here’s a quick tip. As soon as you get the marshmallow treats into the pan, add dish soap and hot water into the bowl. Let that sit for a little. The sticky marshmallow will wash right out.

If you don’t let it soak in hot water, the marshmallow will be a pain in the neck to wash out.

Let the marshmallow treats cool completely before removing them from the tray and cutting them into pieces.

After I cut them, I stick some extra marshmallows on top for a garnish. If you didn’t reserve any extra marshmallows for this, you could use St. Patrick’s Day sprinkles instead.

Lucky Charms Marshmallow Treats: Frequently Asked Questions

More Lucky Charms Treats:

Lucky Charms cereal is on sale everywhere in the first half of March.

So, if you found a buy one get one free deal and now you have an extra box of cereal, use it to make our Lucky Charms chocolate bark. That’s a really fun way to showcase the marshmallows.

Fun fact, though. If you just want the marshmallows, you can actually buy Lucky charms marshmallows online. They come without the cereal, which is perfect if you just want the marshmallows for your baked items this season.