Lucky Charms Marshmallow Treats

Soft, gooey, buttery marshmallow squares loaded with colorful Lucky Charms cereal and extra marshmallows — these Lucky Charms Marshmallow Treats are the ultimate no-bake Saint Patrick’s Day dessert!

They’re quick, festive, kid-friendly, and absolutely irresistible. Think classic Rice Krispie treats… but magically upgraded 🌈✨

Why You’ll Love These Treats

• No-bake recipe
• Ready in 15 minutes
• Super festive for Saint Patrick’s Day
• Gooey, soft, and buttery
• Perfect for parties or lunchbox treats

These are a guaranteed hit for classroom parties and family gatherings.

Ingredients

• 6 cups Lucky Charms cereal
• 4 cups mini marshmallows (divided)
• 5 tablespoons unsalted butter
• 1 teaspoon vanilla extract
• Pinch of salt

Optional:

• Extra marshmallows for topping
• Green sprinkles

• 9×13 baking pan
• Measuring cups / spoons
• Large pot
• Spoon
• Spatula

Instructions

1️⃣ Prepare the Pan

Line a 9×13-inch pan with parchment paper or lightly butter it.

2️⃣ Melt the Base

In a large pot over low heat, melt butter.

Add 3 cups mini marshmallows and stir until completely melted and smooth.

Remove from heat. Stir in vanilla and salt.

3️⃣ Add the Cereal

Quickly fold in Lucky Charms cereal and remaining 1 cup mini marshmallows.

Mix gently until coated but don’t crush the cereal.

4️⃣ Press & Set

Transfer mixture to prepared pan.

Lightly press down using a buttered spatula (don’t pack too firmly — that keeps them soft!).

Let cool 30–45 minutes before slicing.

Tips for Extra Gooey Treats

• Don’t overheat the marshmallows
• Use fresh marshmallows for best texture
• Press gently into the pan
• Add extra marshmallows at the end for pockets of gooey goodness

Storage

Store in an airtight container at room temperature for up to 3 days.

For ultra-soft texture, wrap individually in plastic wrap.

Fun Variations

• Dip half in white chocolate
• Add green M&Ms
• Use heart-shaped cookie cutters
• Drizzle with melted white chocolate

Perfect For

• Saint Patrick’s Day parties
• School celebrations
• Bake sales
• Festive dessert trays
• Quick no-bake treats

If you loved these Lucky Charms Marshmallow Treats, be sure to check out my full Saint Patrick’s Day Recipe Collection for more festive and easy dessert ideas! Don’t forget to save this recipe to Pinterest so you can make it again next year!

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Please see more amazing recipes:

Saint Patrick’s Day Recipe Collection

Irish Potato Candy

Crispy Rice Treats

Pistachio Cake with Cream Cheese Frosting

Skillet Shepherd’s Pie

Oreo Truffles