Lucky Charms Treats! An Awesome Snack for St. Patrick’s Day

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These Lucky Charms Treats are easy to make and fun to eat, and an awesome snack for St. Patrick’s Day! Grab a box of Lucky Charms cereal, a bag of marshmallows, and some butter and get making!

St. Patrick's Day Snack - Lucky Charms Treat! A close up of a Lucky Charms cereal square treat made with marshmallows and cereal. Throughout the post are more photos of the same treats from different perspectives and angles with various text overlays. Unless otherwise described.

Lucky Charms Treats

If you have ever made Rice Krispies treats before then you will know how ridiculously easy they are to make!

For a seasonal twist on a classic sweet treat, why not make Lucky Charms squares instead? They’re made in exactly the same way using the leprechaun’s favorite cereal and marshmallow bits combo instead of puffed rice cereal!

Enjoy them as a snack for St. Patrick’s Day with a glass of milk, or for a bit of fun, use them to bait a leprechaun trap!

Ingredients used in this recipe - marshmallows, butter, and Lucky Charms cereal

Ingredients used in this recipe

For my UK readers: When I go on vacation to the USA, I like to stock up on my favourite American food products and ingredients, so you’ll find them used in some of the recipes on The Purple Pumpkin Blog. However, we can buy a lot of American ingredients online these days, and in supermarkets (check the World Foods aisle!) which is awesome! (Although sometimes the price can be on the high side…) When I use American ingredients in recipes that I share on my blog, I always aim to suggest British alternatives or include Amazon affiliate links to where you can buy them online.

This recipe uses just THREE ingredients:

Did you know that the marshmallow bits in the cereal are meant to represent Lucky’s magical charms, each with their own special meaning or “power.”

  1. Hearts – power to bring things to life
  2. Shooting Stars – power to fly
  3. Horseshoes – power to speed/slow down time
  4. Green Clovers – luck, but you will never know what kind of luck you will get
  5. Blue Moons – power of invisibility
  6. Rainbows – instantaneous travel from place to place
  7. Red Balloons – power to make things float
  8. Unicorn – according to the inaugural cereal box, unicorns can “cleanse water with a touch of their horn,” “heal whatever troubles you,” and “always know when you are telling the truth”
  9. Moon – power to change alternate gravity

[Source: Wikipedia]

Lucky Charms Treat Squares - four pictures of the various stages of making these treats: the ingredients; the melted butter and marshmallows; the cereal stirred into the melted mixture; and the treats pressed into a baking pan.
St. Patrick's Day Treat - Lucky Charms Cereal Squares. The giant cereal treat turned out of the pan onto a wooden board, waiting to be cut into pieces.

Make It A Meal!

You’ve made the dessert, but what about the rest of the courses?

Here are additional recipes to make a full meal!

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Three cut squares of Lucky Charms treats on a plate with gold edges. Sat on green and yellow paper background with various green St. Patrick's Day themed embellishments. A bottle of milk with straw and a box of the Lucky Charms cereal is in the background.

More Recipes Using Breakfast Cereal

Since the main ingredient in this recipe is breakfast cereal here are some more recipes using the same:

Lucky Charms Cereal Treats

More St. Patrick’s Day Treats

Need some more sweet treats for St. Patrick’s Day? Take a look at these recipes next:

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Lucky Charms Treats

Lucky Charms Treats

Yield: 16
Prep Time: 10 minutes
Cooling Time: 2 hours
Total Time: 2 hours 10 minutes

Make these fun and yummy Lucky Charms cereal treats for St. Patrick's Day!


  • 3 Tbsps butter
  • 10oz/285g marshmallows
  • 5 cups Lucky Charms cereal


  1. Grease an 8" square baking pan well with cooking spray. Set aside.
  2. Melt the butter in a large pan over low heat.
  3. Lucky Charms Process - Melt Butter
  4. Add the marshmallows to the pan and stir until completely melted.
  5. blank
  6. Remove from the heat and add the Lucky Charms cereal. Stir until everything is coated with the marshmallow and butter mixture.
  7. Lucky Charms Treats Process - adding the cereal
  8. Pour into prepared baking pan and use the back of a wet spoon to press down evenly.
  9. Press in some extra Lucky Charms marshmallow bits on top if you like.
  10. Adding Lucky Charms Treats to Pan
  11. Place in fridge to cool for a couple of hours.
  12. Remove from pan and cut into 2" squares.
  13. blank
  14. Enjoy!
  15. Lucky Charms Cereal Treat Squares


  • You can also line the baking pan with aluminum foil and grease well with cooking spray. Leave some foil overhanging the edges of the pan so you can lift out the Lucky Charms treats easily. 
  • You can melt the butter and marshmallows in the microwave if you prefer. Melt in 30-second increments stirring well to combine before adding the cereal.

Nutrition Information:
Yield: 16 Serving Size: 1
Amount Per Serving: Calories: 118Total Fat: 3gSaturated Fat: 1gTrans Fat: 0gUnsaturated Fat: 1gCholesterol: 6mgSodium: 104mgCarbohydrates: 24gFiber: 1gSugar: 14gProtein: 1g

This site uses Nutritionix to provide estimated nutrition. If you need exact calories and macros, please do your own calculations. Nutritional information is always approximate and will depend on the quality of ingredients used and serving sizes.

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