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Take the best Rice Krispies Treats recipe and make it MAGICALLY DELICIOUS with Lucky Charms marshmallows! These are so fun for St. Patrick’s Day–or for any day, really. Try your luck and give these a go!

Alright, folks, let’s talk about a serious upgrade to a childhood classic. We’re taking those humble Rice Krispie treats and kicking them up a notch with… drumroll please… Lucky Charms marshmallows! Yeah, you heard me. We’re bringing the magic.

While I am a sucker for nostalgia, the rice krispie treats I grew up with were store bought and not my favorite. But last year, as an adult, I dove head first into the world of rice krispie treats and have discovered I absolutely LOVE homemade ones. I have made A LOT of batches, making up for lost time, and really feel like I’ve hit the jackpot with the recipe I’m going to share. Ooey, gooey, and perfectly sweet. Then add in those sugary, colorful marshmallow bits from a box of Lucky Charms and ohhhhhh man. Jackpot. Again.

Why this Lucky Charms Rice Krispie Treats Recipe works (It’s Pure Magic!):

• Extra Sweetness: The Lucky Charms marshmallows add an extra layer of sweetness and those signature fruity flavors.
• Colorful Fun: Those vibrant marshmallows make these treats visually stunning.
• Nostalgia Overload: It’s like a trip down memory lane with every bite.
• Texture Play: The classic crunch of the Rice Krispies with the soft, chewy marshmallows is a winning combo.
• Easy & Quick: I love me a good dessert, but sometimes you need something quick AND delicious. You get both with this recipe!

What you’ll need for St Patrick’s Day Lucky Charms Rice Krispie Treats:

• Butter: I recommend using salted butter for this recipe!
• Vanilla Extract: adds a touch of warmth.
• Marshmallows: I prefer using mini marshmallows because they melt better, but you can use regular size if you have them.
• Rice Krispies Cereal: The foundation of our masterpiece.
• Lucky Charms Marshmallows: during certain times of the year, you can get bags of STRAIGHT Lucky Charms marshmallows from Target! You can sometimes find them on Amazon, too. One last option is that you can get a box of Lucky Charms cereal and pick out as many marshmallows as you can.

Helpful tools:

• 9X13 glass pan (we love this one because it has a lid…it makes storage SO convenient!)
• Parchment paper

How to Make Lucky Charms Rice Krispie Treats

1. Marshmallows prep: If you are using the Lucky Charms marshmallows from the cereal box, you’ll want to start by separating those out. If not, you can skip this step. 😉
2. Pan prep: Prepare a 9X13 glass pan by lining it with parchment paper (my preferred method) OR by buttering the pan. Set aside.
3. Melt the butter: in a large pan over the stove, melt your butter over medium heat, stirring occasionally to prevent burning. Once the butter has melted, add in the vanilla and stir.
4. Marshmallow melt down: Remove the pan from the stove and add in your regular marshmallows. Give it a gentle stir, then put the lid on the pan. Let it sit for 5-10 minutes, or until the marshmallows are ooey gooey! This method leaves some big delicious globs of marshmallows!
5. Cereal time: Pour in the cereal and half of your Lucky Charms marshmallows. Gently fold into the melted butter/marshmallow mixture until the cereal is well coated and evenly incorporated.
6. Press and cool: Pour or spoon the mixture into your prepared 9×13 pan. Using a greased spatula OR an additional sheet or parchment paper, gently press the mixture into the pan so it sits evenly.
7. Dress it: sprinkle the remaining Lucky Charms marshmallows onto the top of the mixture, and gently press down once more. We want those fellas to stick!
8. Patiently wait then enjoy: Let the treats cool completely before slicing into them. Once cooled, cut into squares and enjoy!

Can you make Rice Krispie Treats with Lucky Charms ahead of time?

Yes! As long as they are stored properly (see below!), they can be made ahead of time.

How to store Lucky Charms Rice Krispie Treats

Here’s a breakdown of how to store them: 

• Room Temperature: Store in an airtight container for up to 2 days.
• Refrigeration: Store in an airtight container for up to 5 days.

Can you freeze Rice Krispie Treats?

I have never personally frozen them, but through a lot of research, the greats are saying you can!

• Freezing: Freeze in an airtight container for up to 3 months.
• Thawing: When ready to eat, thaw frozen treats at room temperature for 10-15 minutes.

These Lucky Charms Rice Krispie treats are perfect for parties, snacks, or just a little pick-me-up. They’re guaranteed to bring a smile to your face. So, go ahead, embrace your inner child, and get your marshmallow on! You deserve a little magic in your day.

More Favorites from Sweetly Petite:

RICE KRISPIE TREATS WITH LUCKY CHARMS MARSHMALLOWS

• 1/2 cup of salted Butter
• 1 tsp Vanilla Extract
• 16 oz. mini marshmallows:
• 6-8 cups Rice Krispies Cereal: I usually go with around 6 so the treats are EXTRA ooey gooey. If you prefer less ooey-gooey-ness, you can use 7-8 cups 🙂
• approximately 4 oz. Lucky Charms Marshmallows: I typically use 1 pouch of the prepackaged marshmallows; if those are not available, do the best you can with picking them out of a box of cereal!

1. f you are using the Lucky Charms marshmallows from the cereal box, you’ll want to start by separating those out. If not, you can skip this step.
2. Prepare a 9X13 glass pan by lining it with parchment paper (my preferred method) OR by buttering the pan. Set aside.
3. In a large pan, melt your butter over medium heat on the stove, stirring occasionally to prevent burning. Once the butter has melted, add in the vanilla and stir.
4. Remove the pan from the stove and add in your regular marshmallows. Give it a gentle stir, then put the lid on the pan. Let it sit for 5-10 minutes, or until the marshmallows are ooey gooey.
5. Pour in the cereal and half of your Lucky Charms marshmallows. Gently fold into the melted butter/marshmallow mixture until the cereal is well coated and evenly incorporated.
6. Pour or spoon the mixture into your prepared 9×13 pan. Using a greased spatula OR an additional sheet or parchment paper, gently press the mixture into the pan so it sits evenly.
7. Sprinkle the remaining Lucky Charms marshmallows onto the top of the mixture, and gently press down once more.
8. Let the treats cool completely before slicing into them. Once cooled, cut into squares and serve.