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Easy Lucky Charms Rice Krispie Treats

Kathleen

by Kathleen Pope Mar 31, 2025

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Pin for lucky charms treats with images of stacked lucky charms bars.
Pin for Lucky Charms Treats Recipe naturally gluten-free with vanilla bean paste and browned butter.
Easy Lucky Charms Bars pin with image of square of lucky charms treats on a pedestal.
Pin for best lucky charms treats with images of close up of Lucky Charms bars and treats.

Whip up some magic Lucky Charms Rice Krispie Treats: a delightful twist on classic Rice Krispie treats. With just four ingredients, these Lucky Charms desserts are cereal bar heaven.

What is it about the squeaky sweet burst biting into Lucky Charms Marshmallows? They take me back to childhood, my mom never bought them, but my grandparents kept them on hand just for us!

Lucky Charms treats squares stacked with extra Lucky Charms sprinkled around.
This post may contain affiliate links. Read my disclosure & privacy policy.

Why You Will Love Lucky Charms Treats

  • Lickity Split | By the time you finish browning your butter, these come together in minutes. 
  • Gluten-Free | Did you know that Lucky Charms are naturally gluten-free?
  • Makes a Lot | While you can cut this into 9 squares, I like to cut them again into 18 or even 36 squares, for great small bite sized treats!

I enjoy giving precise details in my recipe posts to lead my readers through any questions. If you’re just here for the printable recipe, use the Jump to Recipe to head straight there!

  • Why You Will Love Lucky Charms Treats
  • Simple Ingredients for Lucky Charms Desserts
  • Fresh Tip
  • How to Make Lucky Charms Rice Krispie Treats
    • Step 1 | Pre and Make Browned Butter
  • Fresh Tips
    • Step 2 | Make Marshmallow Goo
    • Step 3 | Add Lucky Charms Cereal
  • Step 4 | Cool and Cut
  • Variations & Substitutions
  • Fresh Tips
  • Top Tips and Tricks for Lucky Charms Desserts
  • Frequently Asked Questions
  • Storage Tips
  • Fresh Tips
  • Recommended Equipment
  • Best main dishes to serve with Lucky Charms Desserts
  • Best sides to serve with Lucky Charms Desserts
  • Enjoy these other St. Patrick's Day Treats
  • Easy Lucky Charms Rice Krispie Treats

Perfect for any day, not just St. Patrick’s Day, they had our taste testers craving more after just one bite!

I love making special treats for any holiday, typically I make this Guinness Stout Cake for St. Patrick’s day or these fun and festive Mini King Cake bites, but sometimes you are in the mood for something even easier!

Whether you are looking for a quick and easy classroom treat to make, or you just want to surprise your own family, these Lucky Charm treat bars are the perfect gluten-free quick sweet treat!

Close up of Lucky Charms desserts.

I added one step to these traditional cereal bars that will have you scrambling for more! By browning the butter, the overall flavor is deeply enhanced, making them the best Lucky Charms cereal bars ever!

Love browned butter? You will love my Brown Butter Vanilla Bean Rice Krispie Treats, and these Buckeye Bars.

Simple Ingredients for Lucky Charms Desserts

  • Lucky Charms Cereal | I bought the giant-sized box and got three batches of treats, plus a little leftover for snacking. Because even though Lucky Charms are not what I would call the healthiest of cereal choices, I am a believer of all things in moderation. After all, these are magically delicious!
  • Butter | Use, real butter, it should be hard coming out of the fridge, I used salted butter.
  • Mini Marshmallows | Recipes are all over the place, from 10, 12 to 16 ounces of marshmallows. Every package of marshmallows I found was 10 ounces, so that is what I am going with, and it worked perfectly. If you want them even gooier, go for more!
  • Vanilla Bean Paste | this is optional, but adds a lovely hint of vanilla. If not using vanilla bean paste, add a teaspoon of vanilla extract to the marshmallow mixture. And a little kosher salt enhances the sweet!

Get the full recipe in the recipe card below.

Labeled ingredients for Lucky Charms Rice Krispie treats.
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Fresh Tip

  • Mini marshmallows melt much faster than full size, make sure they are fresh marshmallows.
  • Stale marshmallows take longer to melt, and actually cook a bit making your bars much harder. 

How to Make Lucky Charms Rice Krispie Treats

Step 1 | Pre and Make Browned Butter

Line an 8×8 or 9×9 inch square pan with parchment paper for easier clean up, or butter the pan well. 

Melt butter over medium heat in a large pot. If browning the butter, continue over medium heat, swirling pan occasionally, the butter will foam up and get really quiet, then as you swirl the pan you will start to notice some brown flecks in the bubbles, continue until the butter smells nutty. 

Browning butter in a large pot for Lucky charms bars.
Brown butter in a large pot.

Fresh Tips

  • Use a pot large enough to be able to stir the cereal in after all of the melting. 

Step 2 | Make Marshmallow Goo

Pour mini marshmallows into the browned butter and stir over medium-low heat until they are just about melted. Remove from heat and continue stirring until fully melted. Stir in salt and, if desired the vanilla bean paste or vanilla extract.

Stir mini marshmallows into browned butter.
Stir mini marshmallows into browned butter.
Stir mini marshmallows into browned butter.
Keep stirring marshmallows until mostly melted.
Pouring salt into marshmallow goo - melted marshmallow and butter mixture.
Add salt and vanilla bean paste to marshmallow goo.

Step 3 | Add Lucky Charms Cereal

Add cereal all at once, stirring until it is all coated. Dump into the prepared pan and using a piece of parchment paper, plastic wrap or buttered hands, press the mixture lightly into the pan.

Add Lucky Charms cereal all at once into melted marshmallow goo.
Add Lucky Charms cereal all at once into melted marshmallow goo.
Stir Lucky charms cereal into marshmallow mix until coated.
Stir Lucky charms cereal into marshmallow mix until coated.
Pour Lucky Charms treats into prepared pan.
Pour Lucky Charms treats into prepared pan.
Parchment on top of Lucky Charms bars with hand evening out.
Place a piece of parchment on top and pat into even bars.

Step 4 | Cool and Cut

Allow Lucky Charms Bars to cool for about an hour before cutting. 

Allow rice Krispie treats to cool for one hour.
Allow Rice Krispie treats to cool for one hour.
Using the parchment paper to easily lift the Lucky Charms treats out of the pan.
Use the parchment to lift treats out of pan.
Hand on knife, slicing the Lucky Charms treats into squares or bars.
Cool for 1 hour, then cut.

Variations & Substitutions

  • Add more marshmallows to your Lucky Charms rice krispie treats! Got leftover marshmallows? Toss in up to a cup while stirring in the cereal.
  • Use another type of cereal | You could use Cheerio’s or other toasted oat style cereal.
  • Stir in ½ cup of chocolate chips when you stir in the cereal, or try the same amount of m&m candies if you want these really over the top!
  • Use Lucky Charms St. Patty’s Day cereal with only green and yellow marshmallows!

Fresh Tips

  • Do not push down hard on these lucky charms treats, when you compact them it makes them extra hard, and not nearly as chewy!
Lucky charms desserts stacked three high.

Top Tips and Tricks for Lucky Charms Desserts

  • Thick Bars I This cereal bar recipe yields, big, fat Lucky Charms bars. If you want thinner bars stretching further, press into a 7×11 inch or 9×13 pan. 
  • Fresh Mallows | Be sure your marshmallows are fresh, trust me on this one, I used some older, stale marshmallows in a test batch and it yielded a really hard Lucky Charm dessert, they still tasted good, but definitely give you a jaw workout.
  • Salt | I use salted butter in pretty much all of my baking, these have a lovely sweet-salty flavor, if you are not a fan, either omit the additional salt all together, or cut it in half. It’s not overpowering, but some may not care for it. 
  • DO NOT COMPACT | Unless you want really hard Lucky Charms treats do not press down too hard when pressing into your pan.
  • Press a few additional Lucky Charms marshmallows into the top of the treats right after pressing into the pan.
  • Use parchment to line your baking pan for easy clean-up and to easily lift out of the pan for easy cutting.
Lucky Charms treat bars on pedestal with two more behind.

Frequently Asked Questions

Are Lucky Charms Gluten-Free? 

Yes they are! I made these for friends who are gluten-free and was delighted to realize that the cereal was labeled as certified gluten-free! So because we’re only adding butter and marshmallows these Lucky Charms bars are naturally gluten-free!

Are Lucky Charms Vegan?

According to several vegan websites, no, Lucky Charms are not vegan, since they contain marshmallows and there is gelatin in the marshmallows derived from animal products. 

Can I double this recipe for Lucky Charms Cereal Bars?

Yes, this recipe easily doubles! Be sure to use a large pot when making the recipe! 

Do you need to refrigerate Lucky Charms Treats?

No, in fact, refrigerating Lucky Charms bars will actually take away from their chewiness and make them rock hard. Store in an airtight baggie or container for just right krispie treats!

Tray filled with chewy Lucky Charms desserts.

Storage Tips

Lucky Charms Bars are best when eaten the day they are made, but definitely within 2-3 days.
Store on the counter in an airtight container for up to 5 days (they won’t last that long, trust me!)

Fresh Tips

  • If your Lucky Charms treat bars harden, try microwaving for 10 seconds at a time until softened. Or place in 300 degree oven for 2-3 minutes.

Recommended Equipment

All you need is a big pot and a wooden spoon and you are golden for this recipe!

  • My favorite wooden spoon
  • This is the 8×8 pan I use and love!

Pin for best lucky charms treats with images of close up of Lucky Charms bars and treats.

Best main dishes to serve with Lucky Charms Desserts

Go all Irish on your family and make this flavorful and easy Steak and Ale Pie, or this Irish Bangers and Mash or No Bake Shepherd’s Pie and this Baked Corned Beef and Cabbage!

Square baked corned beef recipe with meat on platter surrounded by roasted cabbage, potatoes and carrots and a loaf of bread in background.

Baked Corned Beef and Cabbage

Traditional Baked Corned Beef and Cabbage this St. Patrick’s Day! Slow roasting salty and sour corned beef with leeks, potatoes, cabbage and carrots, all of their flavors meld and balance in perfect harmony creating fork tender baked corned beef recipe with a delicious smokey bourbon glaze.

Read more
Skillet shepherd's pie square image with golden brown mashed potatoes.

No Bake Shepherd’s Pie

Classic Skillet Shepherd’s Pie (or Cottage Pie) with ground beef or lamb, features a savory meat mixture topped with fluffy mashed potatoes. A hearty one-pan meal, no oven required

Read more
Bangers (Sausages) and mash with stout onion gravy and Guinness in background.

Irish Bangers and Mash

Bangers and Mash with Stout Gravy! What’s not to love about delicious sausages, cooked in a creamy milk stout, layered atop fluffy mashed potatoes; smothered in a rich stout onion gravy.

Read more
A fat slice of pie shows off the juicy filling.

Best Irish Steak and Ale Pie Recipe (Pub Style)

You must try this Steak and Ale Pie! An Irish steak pie filled with tender beef in a flavorful and hearty Guinness gravy, all wrapped in a cheddar puff pastry crust.

Read more

Best sides to serve with Lucky Charms Desserts

We love our Irish breads; try this 4 Ingredient Irish Soda Bread, this 4 Ingredient Beer Bread and this Irish Brown Bread recipe.

Irish brown soda bread recipe on cutting board with a few pieces sliced, butter in background.

Irish Brown Bread Recipe

This authentic Irish Brown Bread recipe is a hearty whole wheat loaf made with buttermilk and sweetened with rich molasses. It's a traditional Irish recipe, perfect for serving with stews and soups, and of course on St. Patrick's Day!

Read more

4 Ingredient Beer Bread

This EASY Beer Bread recipe is one of the easiest bread recipes around. Using just 6 common pantry ingredients, no rise time and less than an hour to bake. It’s the perfect bread for every meal, BBQ, Picnic, Cookout or Party! 

Read more
Irish soda bread with wedge removed, buttered with Irish butter.

4 Ingredient Irish Soda Bread

Traditional 4 ingredient Irish Soda Bread is the best easy recipe to make from scratch. A dense, crusty, hearty bread recipe from Ireland. Gluten free option too!

Read more

Enjoy these other St. Patrick’s Day Treats

  • Guinness Chocolate Cake with Irish Buttercream
  • Creme de Menthe Brownies
  • St Patrick’s Day Puppy Chow
  • Layered Rainbow Jello

I know they did not last long at all in our house! These are perfect for St. Patrick’s day or anytime you want something different a Rice Krispie Treat. 

I hope you loved these Lucky Charms Treats! Be sure to share your creation on Instagram, Facebook and Pinterest? Please comment and rate below the recipe card.

Like this recipe?

Don’t forget to give it a ⭐️⭐️⭐️⭐️⭐️ star rating and leave a comment below the recipe!

Recipe Card
Lucky Charms Bars stacked on table with brightly colored cereal marshmallows scattered around.

Easy Lucky Charms Rice Krispie Treats

No ratings yet
Author: Kathleen Pope
Prep Time: 3 minutes minutes
Cook Time: 6 minutes minutes
Cooling Time: 1 hour hour
Total Time: 1 hour hour 9 minutes minutes
Servings: 18 squares
Print Pin SaveSaved!
Whip up some magic Lucky Charms Rice Krispie Treats: a delightful twist on classic Rice Krispie treats. These bars are cereal bar heaven with just four ingredients, including browned butter and vanilla bean paste.

Equipment

  • Unbleached Parchment Paper
  • USA Pan Square Cake Pan, 8 inch
  • Olive Wooden Spoon

Ingredients 
US Customary – Metric

  • ½ cup salted butter 8 tablespoons butter, (salted or unsalted)
  • 10 ounce marshmallows I used mini marshmallows, be sure they are fresh, may use more
  • 1 teaspoon vanilla bean paste optional, or use vanilla extract
  • ¼ – ½ teaspoon kosher salt optional, but so good!
  • 6 cups Lucky Charms cereal
Get Recipe Ingredients

Instructions

  • Line an 8×8 or 9×9 inch square pan with parchment paper for easier clean up and cutting, or butter the pan well.
  • Melt butter over medium heat in a large pot, if browning the butter, continue over medium heat, swirling pan occasionally, the butter will foam up and get really quiet, then as you swirl the pan you will start to notice some brown flecks in the bubbles, continue until the butter smells nutty. Be patient and don't rush this step.
  • Pour in mini marshmallows and stir over medium-low heat until they are just about melted. Remove from heat and continue stirring until fully melted. Stir in salt and, if desired the vanilla bean paste. 
  • Add cereal all at once, stirring until it is all coated. Dump into the prepared pan aarchment paper, plastic wrap or buttered hands, press the mixture lightly into the pan.
    Allow it to cool for about an hour before cutting.
  • Store in airtight baggie or container up to one week, best eaten within 2-3 days. If Lucky Charms bars get too hard, place in microwave for 10 seconds at a time until softened, or heat in 300 degree oven for a few minutes.
Last step! Leave a RatingRate this recipe here. This helps other readers and helps support this website.

Notes

  • Do not compact | When pressing into the pan, do not press or push hard, if you do you will have really hard Lucky Charms treats. 
  • Use a pot large enough to be able to stir the cereal in after all of the melting. 
  • Thick Bars I This cereal bar recipe yields, big, fat Lucky Charms bars. If you want thinner bars stretching further, press into a 7×11 inch pan or 9×13 pan. 
  • Fresh Mallows | Be sure your marshmallows are fresh, trust me on this one, I used some older, stale marshmallows in a test batch and it yielded really hard Lucky Charm bars, they still tasted good, but definitely give you a jaw workout.
  • Salt | I use salted butter in pretty much all of my baking, these have a lovely sweet-salty flavor, if you are not a fan, either omit the additional salt all together, or cut it in half. It’s not overpowering, but some may not care for it. 
  • Press a few additional Lucky Charms marshmallows into the top of the treats right after pressing into the pan.
  • Use parchment to line your baking pan for easy clean-up and to easily lift out of the pan for easy cutting.
  • Add more marshmallows to your Lucky Charms rice krispie treats! Maybe you have some left over from another recipe, go ahead and toss them in whole when stirring in the cereal.
  • Use another type of cereal | You could use Cheerio’s or other toasted oat style cereal.
  • Stir in ½ cup of chocolate chips when you stir in the cereal, or try the same amount of m&m candies if you want these really over the top!
  • Use Lucky Charms St. Patty’s Day cereal with only green and yellow marshmallows!

Nutrition

Serving: 11 serving | Calories: 142kcal | Carbohydrates: 23g | Protein: 1g | Fat: 6g | Saturated Fat: 3g | Polyunsaturated Fat: 0.4g | Monounsaturated Fat: 2g | Trans Fat: 0.2g | Cholesterol: 14mg | Sodium: 163mg | Potassium: 29mg | Fiber: 1g | Sugar: 14g | Vitamin A: 496IU | Vitamin C: 3mg | Calcium: 54mg | Iron: 3mg
Lucky Charms Bars stacked on table with brightly colored cereal marshmallows scattered around.
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Hi, Iโ€™m Kathleen Pope. Here at The Fresh Cooky you will find easy, mostly from-scratch, trusted recipes for all occasions. From speedy dinners to tasty desserts, with easy step-by-step instructions. I am here to help teach you how to make mouthwatering recipes without spending hours in the kitchen.

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Kathleen Pope

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Hey there! I'm Kathleen Pope, a proud wife, mom of two awesome college boys, and recipe nerd. Welcome to my world of easy recipes with a healthy twist! Join thousands who trust The Fresh Cooky as their go-to recipe source. Let's cook up some magic!

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