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Lucky Charms Marshmallow Treats

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Better Than Store-Bought Lucky Charms Marshmallow Treats! Trust me, if you love the classic rice krispie treats, these are even BETTER. Made with salted butter (this is SO important!!), double the marshmallows, and lucky charms cereal. Every bite is extra gooey, perfectly sweet, crunchy, and soooo unbelievably good. Bonus? They’re super easy to make and so much fun to make! Perfect for St. Patrick’s Day, back-to-school, bake sales, or whenever you’re craving a sweet and delicious no-bake treat.

piled lucky charms marshmallow treats on upside down cake pan with stack of plates behind with more marshmallow treats and empty glasses behind with more cereal scattered around.

About The Recipe

Happy Friday!

Ohmygosh, I have to admit, I absolutely love rice krispie treats. They have been one of my favorite treats since I was a kid.

I mean, sticky sweet marshmallows + cereal? YES, PLEASE!

Though, I think these might just be the best version yet. I know everyone says that, but these are seriously SO. GOOD.

Using Lucky Charms cereal instead of rice krispie’s really makes such a big difference! Personally, I have always really loved lucky charms (serious marshmallow addict here, if you couldn’t tell!), but adding them into melted marshmallows really elevates their flavor.

Every bite is crunchy, extra sweet, gooey, sticky, and just melts in your mouth.

We made these to celebrate St. Patrick’s Day after you all loved our Lucky Charms Milkshake so much, but I seriously think these are gonna be my new go-to for marshmallow treats!

cropped close up of stacked lucky charms marshmallow treats on upside down cake pan.

The best part is that these sweet treats can be ready to eat in LESS than an hour (and that includes cooling time!).

There is just so much to love here. Perfect for St. Patrick’s Day, as a sweet treat for back to school, or just as a weekend treat!

What is a Marshmallow Treat?

A marshmallow treat, or Rice Krispie Treat, is a type of bar shaped treat that’s typically made from a combination of Rice Kripies cereal, marshmallows and butter.

This version is the same as the classic treat, but made with Lucky Charms cereal instead of Rice Krispies!

Reasons You Will Love These Lucky Charms Marshmallow Treats

  • Only three ingredients!
  • Fun to make no matter your age.
  • Perfect for so many occasions.
  • A quick no-bake treat that the whole family will enjoy!
lucky charms marshmallow treats stacked on upside down cake pan with a measuring cup of cereal beside and more marshmallow treats around.

Equipment Needed

Ingredients

(Full ingredient amounts and instructions can be found in the recipe card at the bottom of the post)

  • Salted Butter – This is essential! Using salted butter adds just the right amount of salt to cut some of the sweetness.
  • Mini Marshmallows – We found that it’s best to use mini marshmallows, as they melt more evenly and quicker! You can also use Homemade Marshmallows in this recipe, if you’d like.
  • Lucky Charms Cereal – Make sure the cereal isn’t stale or crushed into small pieces before using!
lucky charms, butter, and mini marshmallows on marble surface.

How To Make Lucky Charms Marshmallow Treats

Step 1: Melt

Melt butter over medium low heat in medium stock pot.

Add marshmallows and stir continuously over medium low heat until melted.

Step 2: Add cereal

Remove from the heat and add in the cereal. Working quickly, mix with a rubber spatula that has been sprayed with cooking spray.

Step 3: Let set

Scrape into prepared pan. Press down evenly and allow to cool completely.

lucky charm and marshmallow mixture in square pan.

Frequently Asked Questions

Why are my marshmallow treats hard?
There are a few things that could be causing the marshmallow treats to become hard! The main culprit tends to be stale marshmallows. Always check your marshmallows before using! If your marshmallows are a-okay, then it might be that your marshmallows were cooked over too high of heat/for too long. It typically only takes about 5-10 minutes for the marshmallows to melt over medium-low heat!

Can I refrigerate these marshmallow treats?
Absolutely! This is actually one of our tricks to have these done in less than an hour. So, if you want these marshmallow treats to set up a little faster, you can place them in the fridge to allow them to chill quickly! Just don’t store leave them in the fridge for longer than 1 hour.

Can marshmallow treats be frozen?
While fresh is definitely better, these marshmallow treats can be frozen. More info on this below!

Can I use a different cereal?
This recipe and it’s amounts is specifically for Lucky Charms cereal. If you use a different cereal, we cannot guarantee the outcome.

How To Store

Fresh marshmallow treats are always best! Though, it’s always inevitable that there’s a few leftover. No worries! Just store them in an airtight container and leave at room temperature for 2-3 days.

If you absolutely MUST, you can also freeze these marshmallow treats. Individually wrap each marshmallow bar in plastic wrap and then place in a freezer safe zip top bag. It should keep for about a month. To thaw, set one out on the counter to allow to come to room temperature.

Just be aware that freezing may cause these marshmallow treats to dry out/become hard.

angled shot of stacked lucky charms marshmallow treats with more cereal and marshmallow treats around on marble surface.

Expert Tips

  • If you’re worried these marshmallow treats might stick, you can line the pan with parchment paper and lightly grease it! This way, they will just lift out of the pan.
  • Do NOT over cook your marshmallows! This is so important. If the marshmallows are over-cooked, they will result in a hard/unpleasant bar. We recommend that you take the marshmallows off the heat as soon as the almost all of the marshmallows are melted. If you still see 2 or 3 marshmallows that aren’t melted, that’s okay! Go ahead and take it off the heat. Be sure to use the photos in the post above as a reference!
  • Be sure to WORK QUICKLY! This is something that is so important. Marshmallows are like any other candy. Once they start cooling, they become almost impossible to work with.
  • Don’t skip greasing your spatula. This helps keep the marshmallow from sticking so much.
  • Be careful to not over-mix! I know it sounds a bit silly, but you really only need to mix until the cereal is combined with the melted marshmallows. If you keep mixing, you may risk breaking the cereal and/or allowing the marshmallows to cool too much.
  • Don’t be afraid to add extra marshmallows on top! This is purely for presentation purposes, but lets be real…the best part of Lucky Charms is all the marshmallows! So, a few more definitely won’t hurt.

When you make these Lucky Charms Marshmallow Treats, leave a comment down below! We love hearing from you and answering any questions you might have! Also, be sure to tag us on social media and hashtag it #BakersTable.

piled lucky charms marshmallow treats on upside down cake pan with stack of plates behind with more marshmallow treats and empty glasses behind with more cereal scattered around.
5 from 1 vote

Lucky Charms Marshmallow Treats

Sweet, gooey, and loaded with DOUBLE the marshmallows! These Lucky Charms Marshmallow Treats are a fun no-bake treat for all ages that's perfect for St. Patrick's Day, back to school, or just as a weekend treat. YUM!
Prep Time: 5 minutes
Cook Time: 10 minutes
Total Time: 15 minutes
Servings: 16

Ingredients
 

  • 5 Tablespoons salted butter
  • 16 ounces mini marshmallows
  • 7 cups lucky charms cereal

Instructions
 

  • Spray a 9 inch square pan with cooking spray. Set aside.
  • Melt butter over medium low heat in medium stock pot.
  • Add marshmallows.
  • Stir continuously over medium low heat until melted.
  • Remove from heat.
  • Add cereal.
  • Working quickly, mix with a rubber spatula that has been sprayed with cooking spray.
  • Scrape into prepared pan.
  • Press down evenly.
  • Allow to cool completely.
  • Cut into squares.

Notes + Tips!

  • If you’re worried these marshmallow treats might stick, you can line the pan with parchment paper and lightly grease it! This way, they will just lift out of the pan.
  • Do NOT over cook your marshmallows! This is so important. If the marshmallows are over-cooked, they will result in a hard/unpleasant bar. We recommend that you take the marshmallows off the heat as soon as almost all of the marshmallows are melted. If you still see 2 or 3 marshmallows that aren’t melted, that’s okay! Go ahead and take it off the heat. Be sure to use the photos in the post above as a reference!
  • Be sure to WORK QUICKLY! This is something that is so important. Marshmallows are like any other candy. Once they start cooling, they become almost impossible to work with.
  • Don’t skip greasing your spatula. This helps keep the marshmallow from sticking so much.
  • Be careful to not over-mix! I know it sounds a bit silly, but you really only need to mix until the cereal is combined with the melted marshmallows. If you keep mixing, you may risk breaking the cereal and/or allowing the marshmallows to cool too much.
  • Don’t be afraid to add extra marshmallows on top! This is purely for presentation purposes, but lets be real…the best part of Lucky Charms is all the marshmallows! So, a few more definitely won’t hurt.

Tools You May Need (affiliate links)

Nutrition

Serving: 1bar | Calories: 181kcal | Carbohydrates: 36g | Protein: 2g | Fat: 4g | Saturated Fat: 2g | Polyunsaturated Fat: 0.4g | Monounsaturated Fat: 1g | Trans Fat: 0.1g | Cholesterol: 9mg | Sodium: 153mg | Potassium: 37mg | Fiber: 1g | Sugar: 22g | Vitamin A: 554IU | Vitamin C: 4mg | Calcium: 70mg | Iron: 4mg

Nutritional information is only an estimate. The accuracy of the nutritional information for any recipe on this site is not guaranteed.

When you make this recipe, remember to tag @bakerstble or hashtag it #BakersTable!

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