These Lucky Charms Rice Krispie Treats are a fun, colorful twist on the classic marshmallow cereal bars! With gooey marshmallows, crunchy Lucky Charms, and Rice Krispies combined into one delicious treat, these bars are perfect for St. Patrick’s Day, kids’ parties, or anytime you want a magically sweet snack.
Why You’ll Love This Recipe
- No-Bake & Super Easy – Just melt, mix, and press into a pan!
- Fun & Festive – Bright Lucky Charms marshmallows make these extra special.
- Soft & Gooey – Perfectly chewy with every bite.
- Kid-Friendly – A great recipe for little helpers to enjoy making.
- Customizable – Add sprinkles, drizzle with chocolate, or mix in extra marshmallows!
Ingredients
(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)
- Lucky Charms cereal
- Rice Krispies cereal
- Mini marshmallows (plus extra for mix-ins)
- Unsalted butter
- Vanilla extract (optional, for extra flavor)
- Sea salt (optional, for balance)
Optional Add-Ins:
- White or dark chocolate drizzle
- Sprinkles
- Extra Lucky Charms marshmallows for topping
Directions

Melt the Marshmallow Mixture:
- Prepare the Pan – Grease a 9×13-inch baking dish with butter or non-stick spray.
- Melt Butter & Marshmallows – In a large pot over low heat, melt the butter. Add mini marshmallows and stir until fully melted and smooth.
- Add Vanilla & Salt – Stir in vanilla extract and a pinch of sea salt for extra flavor.
Mix & Press:
- Combine Cereals – Remove from heat and quickly mix in the Lucky Charms and Rice Krispies. Stir gently to coat evenly.
- Press into Pan – Spread the mixture into the prepared dish, pressing down lightly with a buttered spatula or wax paper.
Cool & Serve:
- Add Extra Marshmallows – Press extra Lucky Charms marshmallows on top while still warm.
- Let Set – Allow to cool for 30 minutes before slicing into squares.
Servings and Timing
- Servings: 12-16 squares
- Prep Time: 5 minutes
- Cook Time: 5 minutes
- Total Time: 10 minutes
Variations
- Chocolate Lucky Charms Bars – Drizzle with melted white or dark chocolate.
- Extra Gooey Treats – Mix in extra whole mini marshmallows before pressing into the pan.
- Rainbow Sprinkle Bars – Add colorful sprinkles for a fun touch.
- Peanut Butter Version – Stir in ½ cup melted peanut butter for extra flavor.
- Gluten-Free Option – Use gluten-free Rice Krispies.
Storage/Reheating
- Room Temperature: Store in an airtight container for up to 3 days.
- Refrigerator: Keeps fresh for up to a week.
- Freezing: Freeze bars for up to 2 months, wrapped tightly in plastic wrap.
FAQs
Can I use only Lucky Charms instead of mixing with Rice Krispies?
Yes! It will be extra crunchy, but still delicious.
Why are my treats too hard?
Press the mixture gently into the pan—don’t pack it too tightly.
Can I use marshmallow fluff instead of mini marshmallows?
Yes, but mini marshmallows give the best gooey texture.
How do I keep my treats soft?
Store them in an airtight container and avoid refrigerating.
Can I add food coloring?
Yes! Add a few drops of green or rainbow colors to the melted marshmallow mixture for extra fun.
What’s the best way to cut these cleanly?
Use a sharp knife coated with non-stick spray for smooth slicing.
Can I use margarine instead of butter?
Yes, but butter gives the best flavor and texture.
Can I make these ahead of time?
Yes! They stay fresh for a few days, making them great for parties.
How do I make these extra thick?
Use an 8×8-inch pan instead of a 9×13-inch for thicker bars.
What pairs well with these treats?
Serve with milk, hot chocolate, or an Irish cream coffee for a festive touch!
Conclusion
These Lucky Charms Rice Krispie Treats are a magical, colorful, and irresistibly gooey dessert! Whether for St. Patrick’s Day, a birthday party, or just for fun, they’re guaranteed to bring smiles. Try this quick and easy recipe today!
PrintLucky Charms Rice Krispie Treats
These Lucky Charms Rice Krispie Treats are a fun and festive twist on the classic, made with buttery marshmallow goodness, Lucky Charms cereal, and extra marshmallows for a colorful and chewy treat. They’re easy to make and no baking required!
- Total Time: 10 minutes
- Yield: 12–16 bars 1x
- Category: Dessert, No-Bake
- Method: Stovetop
- Cuisine: American
Ingredients
- 6 cups Lucky Charms cereal
- 2 cups Rice Krispies cereal (for extra crunch, optional)
- 1 (10 oz) bag mini marshmallows
- 4 tablespoons unsalted butter
- ½ teaspoon vanilla extract
- ½ teaspoon salt
Instructions
-
Prepare the Pan:
- Grease a 9×13-inch baking dish with butter or line it with parchment paper.
-
Melt Butter & Marshmallows:
- In a large saucepan over medium-low heat, melt butter.
- Add mini marshmallows and stir continuously until melted and smooth.
- Stir in vanilla extract and salt.
-
Mix in Cereal:
- Remove from heat and quickly fold in Lucky Charms and Rice Krispies until evenly coated in marshmallow mixture.
-
Press into Pan:
- Pour the mixture into the prepared pan.
- Gently press down with a buttered spatula (but don’t pack too tightly to keep them soft and chewy!).
-
Cool & Serve:
- Let set for 30 minutes at room temperature before slicing into squares.
- Enjoy!
Notes
- For extra Lucky Charms magic, sprinkle extra Lucky Charms marshmallows on top before the treats cool.
- Want them gooier? Use 1½ bags of marshmallows instead of one.
- Storage: Store in an airtight container at room temperature for up to 3 days.