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Lucky Charms Marshmallow Treats Recipe

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213 Comments
4.93 from 136 votes
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These Lucky Charms Marshmallow Treats are crunchy, yet gooey, sweet, yet buttery, and stuffed with TWO kinds of marshmallows!

I love these Lucky Charms Marshmallow Treats, because they're crunchy, they're a little salty, so buttery, and hello, there are TWO kinds of marshmallows! showmetheyummy.com #ricekrispietreats #luckycharms

Yes. I said Lucky Charms Marshmallow Treats. They’re a twist on my very favorite Rice Krispie Treats and these might be even better.

Why you’ll love these

  • Four Ingredients. Butter, salt, marshmallows, and Lucky Charms. Who knew something so simple could be so magically delicious?
  • 10 Minutes. Melt butter, stir in marshmallows, fold in cereal, press into bars. Done. But shhh. Nobody has to know how easy these are.
  • Insanely Delicious. They’re sweet, yet salty and buttery. Crunchy, yet gooey and marshmallowy. What else is there in life?

I love these Lucky Charms Marshmallow Treats, because they're crunchy, they're a little salty, so buttery, and hello, there are TWO kinds of marshmallows! showmetheyummy.com #ricekrispietreats #luckycharmsI love these Lucky Charms Marshmallow Treats, because they're crunchy, they're a little salty, so buttery, and hello, there are TWO kinds of marshmallows! showmetheyummy.com #ricekrispietreats #luckycharms

Ingredient notes

  • Butter – unsalted or salted butter is fine. I don’t recommend anything else, because you’ll loose out on that rich, buttery flavor.
  • Salt – can omit, if necessary. I like the sweet/salty balance. 
  • Marshmallows – I like using mini marshmallows, because they melt faster, but use whatever you have on hand (large, jumbo, anything). You may find that some brands melt better than others. 
  • Lucky Charms Cereal – these are Lucky Charms Marshmallow Treats. ‘Nough said. However, feel free to use any cereal you’d like for a fun twist!
Pro tip
Try adding a drizzle of white chocolate for a fun presentation!

Tips

  1. Use low heat. Melting the butter and marshmallows slowly while stirring constantly prevents burning. 
  2. Use a rubber spatula. The marshmallow sticks less. 
  3. Work quickly. Once melted, stir in the cereal quickly and gently so it doesn’t start to firm up before they’re in the pan.
  4. Use cooking spray or butter. Grease your hands with cooking spray or butter before pressing the mixture into the pan. This prevents sticking.
  5. Press gently. This keeps the bars light and fluffy. Pressing them down too hard will cause them to become too dense and hard.

How to store

Leftovers can be stored in an airtight container at room temperature for 2-3 days or in the freezer for up to 2 months. 

I love these Lucky Charms Marshmallow Treats, because they're crunchy, they're a little salty, so buttery, and hello, there are TWO kinds of marshmallows! showmetheyummy.com #ricekrispietreats #luckycharms

– Jennifer

I love these Lucky Charms Marshmallow Treats, because they're crunchy, they're a little salty, so buttery, and hello, there are TWO kinds of marshmallows! showmetheyummy.com #ricekrispietreats #luckycharms

Lucky Charms Marshmallow Treats Recipe

4.93 from 136 votes
These Lucky Charms Marshmallow Treats are crunchy, yet gooey, sweet, yet buttery, and stuffed with TWO kinds of marshmallows!
Prep Time: 2 minutes
Cook Time: 10 minutes
Yield: 16 bars
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Ingredients

US Customary - Metric
  • ยฝ cup unsalted butter
  • ยฝ teaspoon salt
  • 1 (16 oz) bag mini marshmallows
  • 1 (11.5 oz) box Lucky Charms cereal

Instructions

  • Grease a 9x13 in pan with cooking spray (or two 8x8 inch pans if you want thicker bars). Set aside.
  • Melt butter over low heat in a large stockpot.
  • Sprinkle in salt and mini marshmallows; stirring constantly until melted.
  • Remove from heat, then gently stir in cereal being careful to not crush the cereal.
  • Pour mixture into prepared pan(s) and GENTLY press into an even layer. If you press too hard, youโ€™ll end up with hard marshmallow treats.
  • Allow to cool completely before cutting into squares.
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STORING
Room Temp:5 Days
Refrigerator:N/A
Freezer:2 Months
Reheat:N/A
*Storage times may vary based on temperature and conditions

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Nutrition Information

Nutrition Facts
Lucky Charms Marshmallow Treats Recipe
Amount Per Serving (1 bar)
Calories 219 Calories from Fat 63
% Daily Value*
Fat 7g11%
Saturated Fat 4g25%
Trans Fat 1g
Polyunsaturated Fat 1g
Monounsaturated Fat 2g
Cholesterol 16mg5%
Sodium 228mg10%
Potassium 47mg1%
Carbohydrates 40g13%
Fiber 1g4%
Sugar 24g27%
Protein 2g4%
Vitamin A 575IU12%
Vitamin C 5.4mg7%
Calcium 89mg9%
Iron 4.6mg26%
* Percent Daily Values are based on a 2000 calorie diet.

*Note: Nutrition information is estimated and varies based on products used.

Keywords: lucky charms bars, lucky charms cereal bars, lucky charms marshmallow treats, lucky charms rice krispie treats, lucky charms rice krispies, lucky charms treats, rice kripsie treats
Enjoy this recipe?
Tag @showmetheyummy on Instagram and hashtag it #showmetheyummy
Course: Dessert
Cuisine: American
Author: Jennifer Debth

 

 

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    • Jennifer @ Show Me the Yummy

      If you need a substitute, because you need a dairy free alternative, you could try a vegan/plant-based butter. You might be able to get away with completely omitting the butter, but I can’t guarantee the results or how well the marshmallows will melt without it. I’ve seen other recipes that use oil instead of butter, but again, I can’t guarantee how that will taste!

  7. Wondra

    United States

    5 stars These tasted great. For St. Patrickโ€™s day I added a little green gel food coloring. They looked fun and tasted great! Thank you!
    Reply

  19. Melissa

    Worcester, Massachusetts

    5 stars Omg yum! I did over stir and the marshmallows melted and the color bled some, but still delicious.
    Reply

  25. Evergreen

    Seattle, Washington

    5 stars I found out one St Patrickโ€™s Day that my husband loves Lucky Charms. I made these for gifts, but had to keep some for him! Quick and easy. Love them.
    Reply

  30. Rachael

    United States

    5 stars I’ve made this several times! My only complaint is my grocery store doesn’t sell a box in 11.5 oz size, it’s only 10.5 oz or more. I haven’t got it to look like the picture, but it is still delicious every time!
    Reply

    • Jennifer @ Show Me the Yummy

      Hi Olivia! Storing information is listed in the recipe card under the directions. They’re good for 6 weeks in the freezer.

  44. momo

    Geneva, Illinois

    5 stars Brought these to work for St. Patrick’s day and everyone loved them! Will have to save the recipe for next year!
    Reply

  45. Amanda

    Duluth, Minnesota

    Thank you for putting the size of the cereal box. So many recipes just say “one box of ____.” It’s annoying when there are multiple sizes of some products and your don’t know what size to use. I can’t wait to give these a try. My partner LOVES Lucky Charms.
    Reply

  66. Jerry

    Miami, Florida

    5 stars This recipe was thebomb.com (๏ฝกโ™กโ€ฟโ™ก๏ฝก) Thank you from @jerrylicious305
    Reply

  71. Lindsay

    Oak Harbor, Washington

    5 stars I made this with Peeps cereal for Easter. I ate probably a quarter of the batch before it even set. DELICIOUS!
    Reply

  74. Ella

    United States

    5 stars AMAZING! Definitely make sure you donโ€™t push the cereal too hard, still yummy but itโ€™ll give you a jaw workout๐Ÿ˜‚
    Reply

  86. Hope

    Raleigh, North Carolina

    Just realized my bag if marshmallows is only 10 ounces. Does it really take 16 ounces to make these?
    Reply

    • Jennifer @ Show Me the Yummy

      Hi, Hope! You do need all the marshmallows so that all the cereal sticks together properly. If you want you could just halve the recipe and use 8 ounces of marshmallows instead. Or if you’re fine with a less sticky, marshmallow-y texture, you might be able to get away with just the 10 oz.

  91. Marty

    United States

    5 stars This is the official โ€œdessert of my peopleโ€! LOVE it! โ˜˜๏ธ โ˜˜๏ธ โ˜˜๏ธ
    Reply

  94. FiretruckGma

    Port Orange, Florida

    5 stars Putting these sweet treats in the mail to my grandsons for St. Patrck’s Day! Thank you for the fun and easy recipe!
    Reply

  96. DebBie

    Sandusky, Ohio

    5 stars Making this with my ‘homeschooled’ PreSchooler for St. Patrick’s Day. We are both super excited! Me because super easy, few ingredients & cheap, her because … well fun & yes, 2 marshmallows ;P
    Reply

  97. Elissa

    Corona, New York

    5 stars I plan on making this for st Patrickโ€™s day! What is the shelf life for the treats if they are heat sealed?
    Reply

    • Jennifer @ Show Me the Yummy

      If you heat seal them, I would guess they could last closer to 3 weeks! I haven’t tried this though so I can’t say for sure. Hope you love them ๐Ÿ™‚

  104. yum

    Central, Central and Western District

    5 stars tasted delicious it was so good it was kinda hard to mix or maybe I did something wrong.
    Reply

    • Jennifer @ Show Me the Yummy

      Thank you! The mixture is thick and the marshmallows are gooey which makes it slightly difficult to mix. Was your butter melted? The warm butter should make it much easier to stir. Hope that helps!

    • Rachael

      Huntsville, Alabama

      Does any one know the ingredients measured in cups? I shop a lot in bulk. I have huge boxes of cereal and bags of marshmallows.

    • Jennifer @ Show Me the Yummy

      Hi Rachael! I googled “how many cups in a 11.5 oz box Lucky Charms cereal” and it came up with 9 cups ๐Ÿ™‚

  138. rhys

    Singapore, Central Singapore Community Development Council

    4 stars hey there, just wna say its a good treat i made in a short time but my proportions werent exact so mine was stickier overall 4/5!
    Reply

  142. Janice

    Portland, Oregon

    I used a 10-ounce bag of marshmallows and it turned out great. Was that a typo, or do you really use 16 ounces of marshmallows?
    Reply

    • Jennifer @ Show Me the Yummy

      It’s probably your cereal or marshmallows. I’ve never had that problem!

  144. KM

    Alexandria, Virginia

    Do you think itโ€™s the same if you use salted butter and left out the added salt? Or does salted butter add more salt? Thanks!
    Reply

    • Jennifer @ Show Me the Yummy

      I’m not sure how much salt is actually in salted butter. If you’re going to use salted butter, maybe omit the salt to begin with, taste test the final mixture, and stir in salt, if necessary! ๐Ÿ™‚

  145. patrick

    too damn funny. Our 9 yo daughter finally fell in love with Rice Krispy treats in January. By March I was bored and thought I had found the new killer marshmallow treat with Luck Charms. Just saw your post today, May 23 and see you beat me to the publication punch! A later batch uses 1/2 LC and 1/2 KIX and 1/3 less marshmallows for a less sweet confection. Parents gave fewer dietary distress signals with this combo.
    Reply

  147. Marina

    Philadelphia, Pennsylvania

    Definitely could be the easiest St. Patty’s Day recipe EVER. ๐Ÿ™‚ I’m totally making them!
    Reply