These Lucky Charms Marshmallow Treats are gooey, crunchy, buttery and so good! Just like Rice Krispie treats, but made with Lucky Charms. The colorful marshmallow make these magically delicious!
These Lucky Charm Marshmallow Treats have St. Patrick’s Day written all over them, and since we’re just a few days away from St. Paddy’s Day, these are going to be the perfect treat to make.
You all know how much I love Rice Krispie treats! From the classic recipe to all the delicious variations out there. If you don’t believe me just search “Rice Krispie treats” on my site and you will quickly see what I mean.
Lucky Charms were always one of my favorite cereals as a kid. Did anyone else eat them like me and save all the marshmallow for last when you ate a bowl of them? Some of my boys have done the same thing since they were young (I must have taught them well).

I’ve made these Lucky Charms Marshmallow treats several times over the years, but never taken the time to photograph them and share the recipe. Probably because I figured many of you have already made these some point of your life, but just in case you haven’t made these then it’s your lucky day (no pun intended!)
Lucky Charms Marshmallow Treats are just as easy to make as their Rice Krispie counterpart.
Just 5 simple ingredients:
- Lucky Charms: Obviously the star of the show. You can use the General Mills brand or store brand. When they’re covered in melted butter and marshmallows, you probably won’t be able to tell much of a difference.
- Butter: I always use salted butter when I bake because I like the salty/sweet dynamic, but you can use whichever one you prefer.
- Marshmallows: I prefer mini marshmallows because they melt much faster than regular size marshmallows.
- Salt: If you’re using salted butter you can omit this, but I don’t because I like salty.

Tips and Tricks:
- Use fresh ingredients. Always make sure your ingredients are fresh. If your marshmallows and/or cereal are stale, your treats will taste stale too. Also, using marshmallows that have started to harden up, will just not be as gooey even after being melted.
- Don’t press too hard. When pressing the mixture into your prepared pan, make sure you use a light touch. If you press too hard, the treats will end up being not as soft.
- Prevent Sticking. Get your hands slightly damp before pressing the mixture into the pan, this will prevent it from sticking to our hands.
- Extra gooey. I like to throw in an extra 1/2 to 3/4 cup marshmallows when I add the Lucky Charms to the melted marshmallows. It’s not necessary, but it does add a touch more gooeyness to this bars.

Lucky Charms Marshmallow Treats
- Total Time: 5 minutes
- Yield: 16 bars 1x
Ingredients
- 6 cups Lucky Charms
- 6 tablespoons butter
- 1 (10-ounce) package mini marshmallows (6 cups)
- 1/2 teaspoon vanilla extract
- 1/8 teaspoon kosher salt, optional
Instructions
- Line a 9×9 baking dish/pan with parchment paper or spray lightly with cooking spray.
- In a large saucepan melt the butter and marshmallows over low heat. Stir frequently and remove from heat when marshmallows are almost all the way melted. Stir in the vanilla and salt (if using).
- Add the cereal and gently fold it in until completely coated with the melted marshmallow mixture.
- Transfer to the prepared pan and gently press evenly into the pan. Let cool completely before cutting into squares.
- Prep Time: 5 mins
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