Lucky Charms Marshmallow Treats are a taste of childhood! These are a full 2 inches thick, gooey, and sweet. Wrap them up in plastic wrap to give away and watch people’s eyes light up!
What is it about marshmallow treats that make people so nostalgic?
Kids and adults of all ages just love them! This version—Lucky Charms Marshmallow Treats—are a classic marshmallow treat, all dressed up for St. Patrick’s Day.
No one wants a flat, wimpy marshmallow treat, so these are a full two inches thick! And you can make them in just about 15 minutes (just like my Marshmallow Popcorn Balls), so they’re the perfect easy treat for St. Patrick’s Day.
You can make them with a box of regular Lucky Charms, or if you’re feeling extra festive, look for the St. Patrick’s Day edition of Lucky Charms at your local grocery store.
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Ingredients
You just need four ingredients for this recipe:
- You’ll need one whole (10.5 oz) box of Lucky Charms. Look for the St. Patrick’s Day edition for all green & yellow marshmallows!
- Marshmallows, of course, make these treats nice and gooey. You can use small or large marshmallows.
- Butter makes them just a little richer, and a pinch of salt balances out the sweetness.
How to make Lucky Charms marshmallow treats
Start by lining an 8×8 inch or 9×9 inch pan with parchment paper. This makes it really easy to remove the treats later.
Next, get out your largest saucepan or dutch oven. By making these in a large pan, you can avoid getting another dish dirty when it comes time to add the Lucky Charms!
Place the butter, salt, and marshmallows over medium heat in a large pan. Cook, stirring often, until the marshmallows are melted.
While the marshmallows are cooking, pick ¼ cup of the marshmallows from the Lucky Charms, and set those aside.
Once the marshmallows are melted, pour 9 cups of Lucky Charms into the marshmallow mixture, and stir quickly but gently to combine.
Pour the mixture into the prepared pan, and spread into an even layer. I like to spray a small plastic bag with nonstick cooking spray, place my hand inside, and press the treats into the pan by hand. The treats won’t stick to the bag (thanks to the nonstick spray) and it’s the easiest way to get a nice, even layer.
Press the reserved marshmallows into the top while the mixture is still warm.
Let the treats cool for 30 minutes, then remove the parchment paper, and cut the treats into squares. I made nine 3×3 inch squares from my 9×9 inch pan.
Frequently Asked Questions
Absolutely! This recipe works great with the classic, Rice Krispies. You could also make it with Cheerios, Special K, Fruity Pebbles, Cocoa Krispies, or Kix.
You can easily double this recipe by using two boxes of Lucky Charms, 3 bags of marshmallows, one stick (8 tablespoons) of butter, and a couple pinches of salt. It will fit into a 13×9 inch pan and make 18 treats.
How to make marshmallow treats in the microwave
To make marshmallow treats in the microwave, place the butter, salt, and marshmallows in a large bowl. Heat on high for one minute, stir, and heat on high for another 30 seconds. Continue to heat in 30 second intervals, stirring in between, until the marshmallows are melted.
Stir the cereal into the melted marshmallows and press into a pan lined with parchment paper.
What to do with extra marshmallows
This recipe uses 1½ bags of marshmallows. Here are a few ideas for using up that extra half bag!
- Stir them into hot cocoa.
- Add them to trail mix.
- Make Chocolate Marshmallow Cookies (kids especially LOVE these!)
- Double this recipe and make 18 Lucky Charms Treats instead of 9. You will need three bags total of marshmallows.
- Make a batch of No-Bake Chocolate Cookies.
- Whip up an old fashioned salad, such as 5 Cup Salad (Ambrosia) or Pistachio Salad.
Packaging marshmallow treats
The recipe for Lucky Charms Marshmallow Treats makes 9 large (3×3 inch) squares. These are generous portions, so you could definitely slice them smaller since they are so thick.
To package them for sharing, wrap each treat in a 12×8 inch piece of plastic wrap. You could also pop them into cellophane bags and tie them with gift ribbon to make them a little fancier!
Storage suggestions
Lucky Charms Marshmallow Treats will keep in an airtight container at room temperature for 3–4 days.
Have you tried this recipe? Please leave a ⭐️⭐️⭐️⭐️⭐️ rating and/or comment below!
📖 Recipe
Extra Thick Lucky Charms Marshmallow Treats
Ingredients
- 4 tablespoons butter
- Pinch of salt
- 1½ (10 oz) bags marshmallows (about 60 large marshmallows or 6 cups of miniature marshmallows)
- 9 cups Lucky Charms cereal (exactly one 10.5 oz box)
Instructions
- Line an 8×8 inch baking dish with parchment paper, or spray with nonstick cooking spray.
- Pick out ¼ cup of the marshmallows from the Lucky Charms; set aside.
- Melt the butter and salt in a large saucepan or pot over medium heat. Add the marshmallows and stir until the marshmallows have completely melted.
- Remove from the heat and let sit for 1 minute. Since Lucky Charms have marshmallows, this will prevent the marshmallows in the cereal from melting. Meanwhile, spray a small plastic resealable bag with cooking spray on one side.
- Pour in the Lucky Charms and stir to combine. Pour the mixture into the prepared baking dish. Place your hand inside the plastic bag and push the cereal down into the dish in an even layer. The cooking spray prevents the mixture from sticking to the bag.
- Place the reserved Lucky Charms marshmallows on top and let cool for at least 30 minutes.
- Lift the parchment paper out of the pan, place on a cutting board, and use a sharp knife to slice the Lucky Charms Treats into squares.
- If not serving immediately, wrap the squares tightly in plastic wrap. Serve within 2 days.
Notes
- I used the St. Patrick’s Day edition of Lucky Charms, which has all green/yellow/white marshmallows.
- Use the extra half bag of marshmallows for hot cocoa, put into trail mix, or make a double batch of these gooey treats (a double batch will require 3 bags total).
- To make these in the microwave, place the butter, salt, and marshmallows in a large microwave-safe bowl. Microwave on high for 1 minute, stir, and then continue heating in 30 second intervals until the marshmallows are melted. Stir in the cereal and proceed with the recipe as directed.
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