Name: Lucky Charms Treats
Prep time: 5 min
Cook time: 10 min
Total time: 45 min
Ingredients: 10 ounces mini marshmallows (1 package); 4 tablespoons unsalted butter; ½ teaspoon pure vanilla extract; 6 cups Lucky Charms Cereal

Skip to Recipe Pin Recipe

Enjoy the classic taste of Lucky Charms cereal in a fun, magical way with these delicious Lucky Charms Treats! Made with just 4 ingredients, these no-bake marshmallow bars are easy to make and perfect for Saint Patrick’s Day.

Lucky Charms Marshmallow Treats

We have several cereal treat recipes, but this one is a little different. Lucky Charms Rice Krispie Treats are a smaller batch version of our Rice Krispie Treats recipe and are great for sharing.

These marshmallow treats are the perfect balance of gooey marshmallows and sweet Lucky Charms cereal. They go from start to finish in about 45 minutes, so they take no time at all to prepare.

Ingredients and Possible Substitutions:

Mini Marshmallows: You’ll need 10 ounces of mini marshmallows, 40 regular marshmallows, or 3 cups or 14 ounces of marshmallow fluff.
Butter: We prefer to use unsalted butter, but salted butter works, too.
Vanilla: Pure vanilla extract is our pick. If you have imitation vanilla extract, that works well.
Lucky Charms Cereal: You’ll need Lucky Charms cereal or a close-off brand variety.

How to Make Lucky Charms Treats:

Scroll to the recipe card below for ingredient amounts and full instructions.

These Lucky Charms Marshmallow Treats are a fun dessert that are easy to make and even more fun to eat!

Butter a 9×13-inch baking dish or line it with aluminum foil or parchment paper. Set aside.
Heat a large pan or Dutch oven over low heat then add the mini marshmallows and butter. Stir continuously until the marshmallows are almost completely melted.
Pour in the vanilla, and stir to combine. Remove from heat.

Partially melted marshmallows in a black pan.

Melted marshmallows and butter in a large pan.

Add the cereal, and quickly stir to coat with the melted marshmallows. Make sure to stir down to the bottom of the pan, because there are usually pockets of melted marshmallows hiding below the cereal.
Ensure that all the cereal is evenly coated, then transfer the mixture into the prepared baking dish. Butter your hands or a spatula, and gently press it into an even layer.
Allow the cereal treats to set for at least 30 minutes before cutting them into squares and serving.

Cereal and melted marshmallows in a saucepan.

Tips for Success:

Let your treats cool completely before cutting and serving so that they hold their shape better when served.
Get creative with extra ingredients you can add to your marshmallow treats mix such as sprinkles, white chocolate chips, and even mini-M&Ms!
For thicker Lucky Charms treats, double the recipe or use a 9×9-inch pan.
Press gently on the cereal mixture when adding it to the pan. Pressing too hard causes the treats to become compressed and crunchy.
Dip the bars in white chocolate or milk chocolate for a fun flavor addition. It’s also great drizzled over the top!
Add a few drops of food coloring to change the color of the marshmallows for a festive look.

Storage Options:

Room Temperature: Store leftovers in an airtight container for up to 3 days.

Top down view of a square marshmallow treat.

Do Lucky Charms Treats Need to Be Refrigerated?

Nope! They hold up much better at room temperature. The dry refrigerator air dries out the cereal treats and they lose their freshness.

Can You Double This Recipe?

You sure can! It may almost fill up an entire 9×13-inch pan, but doubling makes the bars thicker.

Can You Add Extra Mini Marshmallows?

Yes, but do it sparingly. Adding too many extra marshmallows causes these bars to fall apart and not set properly.

More Cereal Based Recipes to Try:

Like This Recipe?

We’d love it if you would leave a 5 Star ⭐️⭐️⭐️⭐️⭐️ rating below and follow us on Facebook and Pinterest!