Lucky Charm Rice Krispy Treats
I like making Lucky Charms Rice Krispy Treats when I need a guaranteed crowd-pleaser. Everything comes together in chewy, gooey perfection, and those colorful marshmallows add little pops of sweetness throughout. They’re soft, perfectly sweet, and way more fun than regular Rice Krispy treats. You’ll barely finish cutting before they’re gone.

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I make these delicious treats for St. Patrick’s Day parties, kids’ birthday celebrations, school snacks, classroom treats, and weekend snacking when I want something quick and fun. They’re budget-friendly and come together fast with no baking required. They stay fresh in an airtight container at room temp for up to 3 days or in the freezer for up to 3 months.
Ingredients You’ll Need
You’ll need all the ingredients shown in the photograph below.

How to Make Lucky Charm Rice Krispy Treats with Step-By-Step Instructions
Scroll down for the full recipe card containing a full printable recipe and measurements in both US customary and metric units.
You’ll have these colorful, no-bake desserts ready in just a few minutes with simple stovetop melting and mixing.
Prepare the Baking Dish
Line a 13 × 9-inch baking pan or dish with plastic wrap and lightly grease with nonstick cooking spray. This helps prevent sticking and keeps cleanup simple.
Melt the Butter
Place a large pot over medium heat and add the unsalted butter. Stir until completely melted. I like using a heavy-bottomed saucepan because it distributes heat evenly and prevents hot spots that could burn the marshmallows.
Add the Marshmallows
Add the gooey marshmallows and a pinch of salt. The salt balances the sweetness and brings out the marshmallow flavor, so don’t skip it.
Stir continuously with a rubber spatula, scraping the sides and bottom of the pot to prevent burning. A silicone spatula works perfectly for this since marshmallow mixture won’t stick to it.
Once the marshmallows are fully melted and smooth, remove the pot from the heat immediately. Overheating makes the mixture tough and chewy instead of soft and gooey.
Fold in the Cereal
Gently fold in the Lucky Charms cereal until evenly coated with the marshmallow mixture. Work quickly before the melted marshmallow starts to set, but not aggressively that you start to crush the cereal pieces.
You want them just evenly distributed but still intact as much as possible.
SERIOUSLY GOOD
DESSERTS!
Dessert First is a collection of 61 RECIPES to show you that you can make beautiful, impressive desserts right in your own kitchen, no matter your skill level.
Immediate eBook download. No physical book available.
Includes ad-free recipes like:
∙ Lemon Pound Cake
∙ Key Lime Bars
∙ Boston Cream Pie
∙ No-Bake Chocolate Lasagna
∙ Raspberry Cheesecake
...and much more!
Press Into the Pan
Transfer the cereal mixture to the prepared pan or baking dish and spread evenly. Lightly press it into an even layer using your spatula or lightly greased hands. Do not press too firmly. Heavy pressing makes dense, hard treats instead of light and fluffy ones.
Using a piece of parchment paper over the top while pressing helps create an even surface without sticking to your hands.

Chill and Cut
Refrigerate for at least 20 minutes, or until set. Cut evenly into 12 squares with a sharp chef’s knife sprayed with cooking spray to make clean cuts without pulling or tearing.
Serve and enjoy!
These treats travel beautifully to parties, potlucks, picnics, and classroom celebrations. Layer them in an airtight container with wax paper between layers to prevent sticking. They hold their shape well at room temperature, so you don’t need to worry about coolers or ice packs.
For outdoor events in warm weather, keep them in a shaded spot and serve within a few hours for the best texture. They’re sturdy enough to transport in your car, pack in lunchboxes, or bring to school events without falling apart.

Ingredients
- ⅓ cup unsalted butter
- Pinch of salt
- 12 ounces marshmallows
- 5½ cups Lucky Charms cereal
Video
Instructions
- Line a 13 × 9-inch baking dish with plastic wrap and lightly grease with cooking spray. Set aside.
- Place a large pot over medium heat and add the unsalted butter. Stir until completely melted.⅓ cup unsalted butter
- Add the marshmallows and a pinch of salt. Stir continuously with a rubber spatula, scraping the sides and bottom of the pot to prevent burning.Pinch of salt, 12 ounces marshmallows
- Once the marshmallows are fully melted and smooth, remove the pot from the heat immediately.
- Gently fold in the Lucky Charms cereal until evenly coated with the marshmallow mixture.5½ cups Lucky Charms cereal
- Transfer the mixture to the prepared baking dish. Lightly press it into an even layer using a spatula or lightly greased hands. Do not press too firmly.
- Refrigerate for at least 20 minutes, or until set.
- Cut into 12 rectangles and serve.
Notes
Nutrition
SERIOUSLY GOOD
DESSERTS!
Dessert First is a collection of 61 RECIPES to show you that you can make beautiful, impressive desserts right in your own kitchen, no matter your skill level.
Immediate eBook download. No physical book available.
Includes ad-free recipes like:
∙ Lemon Pound Cake
∙ Key Lime Bars
∙ Boston Cream Pie
∙ No-Bake Chocolate Lasagna
∙ Raspberry Cheesecake
...and much more!
How to Store Leftovers
Keep them in an airtight container at room temperature for up to 3 days. Store them in a single layer, or if you need to stack them, place a piece of parchment between each layer. They stay soft and gooey when stored properly, but exposure to air will make them hard and stale.
For longer storage, flash-freeze them on a freezer-safe sheet pan for about 30 minutes, then transfer them to a freezer container or resealable bag for up to 3 months. Using freezer-safe containers with tight seals prevents freezer burn and keeps them tasting fresh.
Let frozen treats sit at room temperature for about 10 minutes before serving so they soften slightly and the marshmallow returns to that perfect stretchy texture.
What to Serve With Lucky Charm Rice Krispy Treats
Serve them alongside fresh fruit like strawberries, grapes, or apple slices to balance the sweetness. They’re also great with vanilla ice cream, chocolate milk, or hot cocoa for an indulgent dessert spread.
For parties, set them out with other fun treats like sugar cookies, brownies, or popcorn. They pair nicely with savory snacks too, like pretzels, cheese cubes, or veggie sticks with ranch dip, giving kids a variety of flavors to enjoy.
More Easy Recipes for You to Try at Home
If you’re a sweet tooth, you’ll also love these other easy treats that are perfect for parties.

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