These Lucky Charms Rice Krispie Treats are soft, gooey, and packed with colorful marshmallow magic in every bite! Made with just four ingredients, they’re the perfect no-bake dessert.
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Reasons To Love These Lucky Charms Rice Krispie Treats
- Colorful and Fun: Kids and grown ups both love these!
- Easy to Make: Ready in just 15 minutes.
- Gooey and Chewy: With just the right amount of sweetness.
- Perfect for Gifting: Wrap them up and they stay soft for days!
Y’all know my love for rice krispie treats (or better yet – brown butter rice krispie treats) runs deep! However, this Lucky Charms version happens to be my kids favorite marshmallow treat. Along with a loaf of Irish soda bread, these festive bars are our favorite way to celebrate St. Patrick’s Day! For a more decorative finish, I always set aside a few of the colorful Lucky Charms marshmallows to press into the top of the bars after I add them to the pan.
This recipe was originally posted on March 9th, 2014 and was updated with new photos and video on April 10th, 2025.
Ingredient Notes
You only need 4 inexpensive ingredients for these Lucky Charm treats. See recipe card below for measurements!
- Lucky Charms Cereal: The star of the show!
- Mini Marshmallows: Old marshmallows tend to be stale and dry, use soft and fresh marshmallows to ensure the bars turn out soft and chewy.
- Butter: If you choose to use salted butter, only add an additional 1/4 teaspoon of salt. For an added depth of flavor, you can brown the butter for a slightly nutty flavor. Follow these directions for how to brown butter before adding in the marshmallows.
- Salt: A pinch of salt is optional, but it helps to balance the sweetness.
How to Make Lucky Charms Rice Krispie Treats
You’re going to love just how quick and easy this recipe is! I like to line my pan with parchment paper for easy removal and cleaner cutting. A little butter or non-stick spray will help hold it in place. Below is a quick recipe overview, but please scroll down to the recipe card for full instructions.
Chef’s Tips & Variations
- Press Gently: Avoid packing the mixture too tightly into the pan. Lightly press it in with buttered hands or a greased spatula to keep the treats soft and airy.
- Even More Marshmallows: For an ultra-gooey texture, stir in up to 3 extra cups of mini marshmallows after melting the first batch. This creates soft, pillowy pockets in each bite.
- Extra Thick: For thick, bakery-style bars, double the recipe OR press the mixture into a smaller pan (like an 8×8-inch pan instead of a 9×13).
- Fun Shapes: Instead of squares, use cookie cutters to make fun shapes like hearts, stars, or circles for special occasions. Insert a lollipop stick into each one for a fun, handheld version—great for kids’ parties!
Lucky Charm Marshmallow Treats
Ingredients
- ½ cup (1 stick) unsalted butter
- ½ teaspoon salt
- 1 (10 oz) bag mini marshmallows
- 1 (12 oz) box Lucky Charms cereal
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Instructions
- Grease a 9×13 pan with butter and set aside. For even easier removal, you can also line the pan with parchment paper.
- In a large non-stick pan, melt butter over medium-high heat. Once melted add salt and marshmallows, stirring until marshmallows melt completely. Remove from heat and quickly fold in the Lucky Charms.
- Transfer mixture to prepared pan and gently press and spread evenly using a buttered spatula. When cooled, cut into squares and enjoy!
Notes
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These turned out so amazing for our bake sale! The first to sell out!
Well, these are genius. I want a dozen for breakfast!!
OMG sooooo cute and COLORFUL! I love them!
Give me the whole pan!
Just saw you pop on The Pioneer Woman’s site and am I super jealous! Looks like you had a good time.
Love these! I’m a big Lucky Charms fan, mostly for the marshmallows! These are perfect for St. Patrick’s Day.
I am so in love with these!
Lucky Charms are one of my favorite cereals of all time, so I’m all over these! Love!
My daughter would love these!! Happy St. Patty’s Day 🙂
So adorable! Can’t wait to make these for my kids!
simple & perfect for st pats – loves!