Lucky Charms Sugar Cookies

This post contains affiliate links and we make a small commission for purchases made using these links.

My friends, have I got a treat for you today. These perfectly soft and chewy Lucky Charms sugar cookies are magically delicious (ha, I couldn’t resist that one) literally melt in your mouth.

They’re rich, and buttery, and have just the right amount of sweetness. A fun and flavorful St. Patrick’s Day treat for the cookie lovers out there (me!).

Lucky Charms cookies stacked up on an old baking sheet.

Here’s What You’ll Need To Make These Cookies

  • 1/2 cup of butter (make sure it’s softened)
  • 1 cup of sugar (because sweetness is the name of the game here)
  • 1 egg
  • 1 egg yolk (we’re really getting fancy now, more on this later)
  • 1 teaspoon of vanilla extract
  • 1 and 3/4 cups of all-purpose flour (the foundation of any good cookie)
  • 1/2 teaspoon of baking soda (to help them rise to perfection)
  • 1/2 teaspoon of sea salt (because every sweet treat needs a little balance)
  • 1 cup of Lucky Charms marshmallows
Do you love this post?

Share it on Pinterest

Now, Let’s Make Lucky Charms Sugar Cookies

  1. Preheat your oven to 350 degrees Fahrenheit and line three baking sheets with parchment paper. Don’t skip this step unless you want a sticky mess (just trust me, here – marshmallows melt).
  2. In a decent-sized bowl, cream together the butter and sugar until light and fluffy. It takes a good 2 ish minutes, so be patient.
  3. Crack those eggs – one whole egg, one yolk – and add in that teaspoon of vanilla extract. Mix it until it’s smooth, but don’t whip it.
Creamed butter and sugar in a glass bowl.
Creamed butter and sugar in a glass bowl with two eggs and vanilla extract.
  1. Now, toss in your flour, baking soda, and sea salt. No need to whisk this separately, just add the baking soda and the salt to the center of the flour and mix from the center out. Try not to overmix the flour though – we want these cookies to be tender, not tough.
Whipped butter, sugar, and eggs in a glass bowl.
Flour, baking soda, and salt added to creamed butter in a glass bowl.
  1. Then, fold in the Lucky Charms marshmallows. Save some extra for the top of the cookies later on – it’ll make them look extra cute after they bake.
Mixed cookie dough in a glass bowl.
Lucky Charms added to cookie dough with an old spoon sitting next to it.
  1. Grab a good-sized scoop of dough (about 3 tablespoons) and plop it onto your prepared baking sheets. Give them some room to spread out a bit.
  2. Then, pop those bad boys in the oven for about 10 minutes, rotating the pan halfway through for even baking.
Scooped cookie dough on an aluminum baking sheet with a cookie scoop.
Baked Lucky Charms cookies on a lined baking sheet.
  1. Once they’re done and out of the oven, gently press a few extra marshmallows into the tops of the cookies. Then, let them cool on the baking sheets for a few minutes before transferring them to a wire rack to cool completely.
  2. Finally, store your Lucky Charms sugar cookies in an airtight container to keep them fresh. Or, if you’re like me and have zero self-control, just eat them all in one sitting. It’s fine, really, no judgment here. *wink*
  • Be sure to check out the full ingredient list and recipe instructions below.
Lucky Charms cookies sitting on a round wire rack with a green striped napkin underneath.

Why The Extra Egg Yolk?

Because it makes them delicious! No really, adding an extra egg yolk to cookie dough can improve the texture, flavor, and appearance of the finished cookies, making them even more delicious and enjoyable to eat. It can make all the difference. Here’s how it works:

  1. Moisture: Egg yolks are high in fat, which adds moisture to the cookie dough. This extra moisture helps create a softer, chewier texture in the finished cookies.
  2. Tenderness: The fat content in egg yolks also contributes to a more tender crumb in the cookies. This means they’ll have a softer, melt-in-your-mouth quality rather than being dry or crumbly.
  3. Flavor: Egg yolks contain natural emulsifiers and fat-soluble flavors, which enhance the overall flavor profile of the cookies. They add a subtle richness and depth of flavor that makes the cookies more satisfying to eat.
  4. Color: Egg yolks also contribute to the golden color of baked goods. Adding an extra yolk can result in cookies that have a slightly deeper, more golden hue, giving them a more appealing appearance.
Cookies stacked up on an old baking sheet.


  • The irregular shapes and sizes of the Lucky Charms marshmallows can make the cookies uneven, so it’s important to make sure they’re as evenly dispersed as possible. It’s okay to use broken marshmallows or marshmallow pieces too.
  • The marshmallows will melt slightly during baking, this is normal.
  • I recommend gently pressing a few extra marshmallows into the tops of the cookies when they first come out of the oven. It helps make them look more uniform and the marshmallows really pop!

What You’ll Love Most About These Cookies

Get ready to fall head over heels for these Lucky Charms cookies my friends. From the moment you take your first bite, you’ll be transported back to your childhood – I know you remember those Saturday mornings, watching cartoons eating a big bowl of Lucky Charms cereal.

These cookies are just like that. Pure happiness. Their soft and chewy texture, combined with their buttery sweetness and surprise bursts of marshmallows, make each bite nostalgic and wonderful.

Cookies on a wire rack with a green striped napkin and glasses of milk in the background

So there you have it my friends – these Lucky Charms sugar cookies are as easy to make as they are to eat. They might not be the most traditional St. Patrick’s Day treat, but hey, who needs tradition when you’ve got soft, chewy marshmallow cookies that are this delicious? So go ahead, whip up a batch or two and let me know what you think. 🍀🍪

Lucky Charms sugar cookies stacked upon an old baking sheet.

Lucky Charms Sugar Cookies

By: Kristine Underwood
These perfectly soft and chewy Lucky Charms sugar cookies are not only magically delicious, they literally melt in your mouth. They're rich, and buttery, and have just the right amount of sweetness. A fun and flavorful St. Patrick's Day treat for all cookie lovers.
5 from 7 votes
Prep Time 10 minutes
Cook Time 10 minutes
Total Time 20 minutes
Course Sweets & Dessert
Cuisine American
Servings 16 cookies
Calories 162 kcal


  • 1/2 cup unsalted butter (room temperature)
  • 1 cup sugar
  • 1 egg
  • 1 egg yolk
  • 1 tsp vanilla extract
  • 1 3/4 cup flour (all-purpose)
  • 1/2 tsp baking soda
  • 1/2 tsp sea salt
  • 1/2 cup Lucky Charms marshmallows (plus extra for pressing into the top)


  • Preheat oven to 350 degrees and line three baking sheets with parchment paper.
  • In a medium size bowl, cream butter and sugar together with an electric mixer on medium speed for 2 minutes, until light and fluffy.
    1/2 cup unsalted butter, 1 cup sugar
  • Beat in egg, egg yolk, and vanilla extract and mix for an additional minute, just until incorporated.
    1 egg, 1 tsp vanilla extract, 1 egg yolk
  • Add the flour, baking soda, and salt to the bowl and mix until just combined.
    1 3/4 cup flour, 1/2 tsp baking soda, 1/2 tsp sea salt
  • Fold in the Lucky Charms marshmallows, leaving some to press into the tops of the cookie after baking.
    1/2 cup Lucky Charms marshmallows
  • Using a 3 tablespoon cookie scoop, scoop dough onto lined baking sheets.
  • Bake for 10 minutes, rotating the pan halfway through to ensure even baking.
  • Let cookies cool on the cookie sheet for 5 minutes before transferring to a wire rack to cool completely.
  • Store cookies in airtight container for 3-5 days or freeze for up to 3 months.


*Make sure to read the cookie baking tips to get answers to common questions about baking cookies.


Serving: 1 cookieCalories: 162kcalCarbohydrates: 24gProtein: 2gFat: 6gSaturated Fat: 4gPolyunsaturated Fat: 0.4gMonounsaturated Fat: 2gTrans Fat: 0.2gCholesterol: 38mgSodium: 114mgPotassium: 22mgFiber: 0.4gSugar: 13gVitamin A: 209IUCalcium: 7mgIron: 1mg
Tried this recipe?Let us know how it was

Leave a Comment or Question

Your email address will not be published. Required fields are marked *

Recipe Rating


  1. Loved the texture of these cookies, they’re the perfect combo of chewy and buttery. Yum!5 stars

    1. Gah! Thank you so much Nichole! Not a March goes by without baking at least one batch of these cookies. Happy to hear you loved them too!

  2. Mackenzie says:

    These are perfect. We made them this weekend and can’t wait to make them again.5 stars

    1. Thank you so much, Mackenzie! I’m glad to hear you loved the cookies!

  3. These are SO CUTE! Made them with my daughter and she loved them5 stars

    1. Hi Harriet! Thank so much, I’m thrilled to hear your daughter enjoyed these cookies. They are super fun!

  4. These cookies are so fun and very yummy! My kids loved making and eating them! Haha!5 stars

    1. Thank you so much, Dannii! LOL, I can relate to that – me too! I can’t make a batch without downing a few. 🙂

  5. These are my favorite sugar cookies! I’ve been making these a multiple times and every batch is always perfect!5 stars

    1. Okay, Julia you just made my day! Thank so much – I’m thrilled you love this recipe too!

  6. This is such a great idea – thank you so much for these!5 stars