Magically Delicious: The Ultimate Lucky Charms Cookies Recipe for St. Patrick’s Day
Get ready to add a sprinkle of magic to your day with these unbelievably fun and delicious Lucky Charms Cookies! They are the quintessential St. Patrick’s Day treat, featuring a perfectly soft and chewy sugar cookie base generously studded with those iconic, colorful Lucky Charms marshmallows. Whether you’re celebrating the luck of the Irish or just looking for a whimsical dessert, these cookies are guaranteed to bring smiles.
Why stop at cookies? Start your morning off with even more festive fun by making St. Patrick’s Day Green Pancakes, also delightfully topped with Lucky Charms, for a truly magical breakfast experience!

As a parent, I cherish finding joyful and memorable ways to celebrate holidays with my children. There’s immense delight in seeing their excitement over small, special moments, and baking these Lucky Charms sugar cookies together definitely creates one of those moments. My sons absolutely adored these! They are incredibly soft, perfectly chewy, and infuse a delightful sense of whimsy into any day. These cookies aren’t just a dessert; they’re an experience, full of vibrant colors and a playful crunch that makes them irresistible to kids and adults alike. Plus, the process of making them is just as enjoyable as eating them!
Why You’ll Love These Lucky Charms Cookies
- A Fantastic Family Activity: Baking these cookies is more than just a recipe; it’s a wonderful opportunity to involve your kids in the kitchen. While you can certainly buy bags of just the Lucky Charms marshmallows, a big part of the fun (and a great activity for little hands!) is helping to pick out the colorful marshmallows from a box of traditional cereal. It’s a simple task they’ll love, making them feel like true bakers.
- Effortless Holiday Spirit: For those who love to celebrate holidays but prefer not to go overboard with elaborate decorations, these cookies are a dream! They instantly inject a festive St. Patrick’s Day vibe without requiring excessive effort. Their bright colors and playful nature make any celebration feel special and joyous.
- Quick, Easy, and Irresistibly Delicious: Don’t let their impressive appearance fool you – these cookies are incredibly simple to whip up. From start to finish, you’re looking at about 30 minutes of your time. The result? Thick, chewy, and wonderfully sweet sugar cookies that melt in your mouth, offering a delightful contrast with the slightly crispy, slightly gooey marshmallows.
- Unique Texture and Flavor Profile: The combination of a classic, buttery sugar cookie with the unique crunch and chew of cereal marshmallows creates a truly distinctive treat. It’s a nostalgic nod to breakfast cereal transformed into an exciting dessert, offering a burst of color and a subtly sweet, vanilla flavor that everyone will adore.
Essential Ingredients for Magical Marshmallow Cookies
Crafting the perfect Lucky Charms cookie relies on a few key ingredients, each playing a vital role in achieving that delightful texture and flavor. Here’s a closer look at what you’ll need and why:

- Unsalted Butter: The cornerstone of any good cookie! Using softened, unsalted butter allows you to control the salt content in your recipe. Crucially, the temperature of the butter significantly impacts the cookie’s texture. We use softened (not melted) butter to ensure our cookies stay thick and soft, rather than spreading too thin during baking.
- Granulated Sugar: As these are classic sugar cookies, granulated sugar is our sole sweetener. It provides the crisp edges and tender crumb we’re aiming for, without the added moisture and chewiness that brown sugar typically brings to other cookie varieties.
- Egg: Eggs bind the ingredients together, add moisture, and contribute to the cookie’s structure. For the best incorporation into the dough and a more even bake, always use eggs at room temperature. This allows them to emulsify more effectively with the butter and sugar.
- Vanilla Extract: Think of vanilla as the “salt” of sweet recipes. It doesn’t just add its own flavor; it enhances and deepens all the other sweet notes in the cookie, making them richer and more complex. Don’t skip it!
- All-Purpose Flour: Flour is the structural backbone of our cookies. The precise amount is key to achieving that perfect chewy-yet-tender balance. Too much flour can lead to a stiff, dry cookie, while too little can result in a batter that spreads too much, resembling a brownie rather than a firm cookie.
- Baking Soda & Baking Powder: These are our leavening agents, working together to give the cookies their delightful lift and tender texture. Baking soda reacts with the acidic components in the dough, while baking powder provides an additional boost.
- Salt: A pinch of salt is crucial in sweet baking. It balances the sweetness, making the flavors pop and preventing the cookies from tasting one-dimensionally sugary.
- Lucky Charms Cereal Marshmallows: The star of the show! These colorful, dehydrated marshmallows are what make these cookies truly magical. While specialty bags of just the marshmallows are sometimes available, separating them from a box of Lucky Charms cereal is a fun and easy alternative, especially with kids.
Step-by-Step Guide to Baking Lucky Charms Cookies
Follow these simple steps to create your own batch of magically delicious Lucky Charms cookies:
- Prepare Your Workspace: Begin by preheating your oven to 350°F (175°C). Line a baking sheet with parchment paper. This prevents sticking and makes cleanup a breeze.
- Cream the Wet Ingredients: In the bowl of a stand mixer fitted with a paddle attachment (or using a hand mixer), cream together the softened unsalted butter and granulated sugar. Beat on medium speed until the mixture is light, fluffy, and pale in color, typically 2-3 minutes. Make sure to scrape down the sides of the bowl occasionally to ensure everything is well combined.
- Add Egg and Vanilla: Beat in the room temperature egg and vanilla extract until they are fully incorporated into the creamy mixture.
- Combine Dry Ingredients: In a separate bowl, whisk together the all-purpose flour, baking soda, baking powder, and salt. Gradually add these dry ingredients to the wet mixture, mixing on low speed until just combined. Be careful not to overmix the dough, as this can lead to tough cookies.
- Fold in the Marshmallows: Gently stir in 1 cup of the Lucky Charms marshmallows until they are just incorporated into the dough. Again, avoid overmixing to maintain the cookies’ tender texture. Remember to set aside the remaining 1 cup of marshmallows for topping the baked cookies.
- Portion into Balls: Scoop and roll the cookie dough into 2-tablespoon sized balls. For consistency, I highly recommend using a size 40 cookie scoop. Place the dough balls onto your parchment paper-lined baking sheet, leaving some space between each for spreading.
- Bake and Decorate: Bake for 9-11 minutes, or until the edges are just set and the tops are no longer shiny but still look soft in the center. The cookies may still look slightly underdone, but they will continue to set as they cool. Immediately upon removing them from the oven, gently press several of your reserved Lucky Charms marshmallows into the tops of each warm cookie. This step is optional but highly recommended for that extra festive visual appeal!
- Cool Completely: Allow the Lucky Charms Marshmallow cookies to cool on the baking pan for at least 5 minutes before carefully transferring them to a wire rack to cool completely. This helps them firm up and prevents them from breaking.








Expert Tips for Perfect Lucky Charms Cookies
Achieving cookie perfection is easier with a few insider tricks. Keep these tips in mind for the best Lucky Charms cookies every time:
- Reserve Marshmallows for Topping: This is a game-changer for visual appeal! The marshmallows mixed into the dough will melt and mostly disappear during baking, becoming a chewy, sweet pocket within the cookie. To ensure that vibrant, festive look, always set aside a portion of the marshmallows (at least 1 cup) to press into the cookies immediately after they come out of the oven. The residual heat will soften them just enough to adhere, giving you that beautiful, noticeable marshmallow topping.
- Do Not Overbake: This is perhaps the most crucial rule for soft, chewy cookies. Sugar cookies, especially, benefit from being slightly underbaked. Remove them from the oven when the edges are just set and lightly golden, but the centers still look soft and perhaps a little shiny. They will continue to bake and set on the hot pan after removal, resulting in a perfectly tender cookie. Overbaking will lead to dry, crumbly cookies.
- Room Temperature Ingredients are Key: Ensure your butter is softened (but not melted!) and your egg is at room temperature. This allows them to cream together smoothly, creating a uniform emulsion that traps air. This trapped air is what gives your cookies their light, fluffy texture and helps prevent excessive spreading. Cold ingredients don’t emulsify well, leading to a denser, less consistent dough.
- Measure Flour Accurately: Baking is a science, and flour measurement can significantly impact your cookie’s texture. The best method is to lightly spoon the flour into your measuring cup and then level it off with a straight edge, rather than scooping directly from the bag (which can compact the flour and lead to too much being used).
- Consider Chilling the Dough (Optional but Recommended): While this recipe is designed to be quick, a brief chill (30 minutes to an hour) can actually improve the cookie’s texture and prevent over-spreading. Chilling helps the butter solidify, resulting in thicker, chewier cookies. If you have the time, it’s a worthwhile step!
- Don’t Overmix the Dough: Once you add the flour, mix until just combined. Overmixing develops the gluten in the flour, which can lead to tough, dense cookies. Stop mixing as soon as no dry streaks of flour are visible.
Creative Variations to Personalize Your Lucky Charms Cookies
While delicious on their own, these cookies are also a fantastic canvas for your culinary creativity. Here are some fun ways to customize them:
- Go Green with Food Coloring: I personally love how the natural sugar cookie color allows the vibrant Lucky Charms marshmallows to truly pop. However, if you’re going all out for St. Patrick’s Day, feel free to add a few drops of green food coloring to the dough after the wet ingredients are combined and before adding the marshmallows. A gel food coloring will give you the most intense color.
- Add White Chocolate Chips: For an extra layer of sweetness and a creamy texture, fold in about 1/2 cup of white chocolate chips along with the marshmallows. White chocolate pairs beautifully with the vanilla sugar cookie base and the sweet marshmallows.
- Dipped in Green Chocolate: Elevate these cookies for a fancier presentation! Once cooled, dip half of each cookie into melted green candy melts or white chocolate dyed green with food coloring. Let them harden on wax paper before serving for an elegant and eye-catching touch.
- Lucky Charms Ice Cream Sandwiches: Turn these cookies into an epic St. Patrick’s Day dessert! Pair two cooled cookies with a scoop of mint chocolate chip ice cream or even plain vanilla for a refreshing and decadent treat. Freeze briefly before serving to let the ice cream firm up.
- Try Other Cereal Marshmallows: Feeling adventurous? While Lucky Charms are classic, you could experiment with marshmallows from other fun cereals (if available) for different holiday themes or just for fun!
Make Ahead, Storing, and Freezing Your Festive Treats
Planning ahead or want to enjoy these magical cookies for longer? Here’s how to store and freeze them:
- Storing Baked Cookies: Keep your baked Lucky Charms cookies fresh and soft by storing them in an airtight container at room temperature. They will remain delicious for 4-5 days. For best results, consider placing a slice of bread in the container to help keep them soft.
- Freezing Cookie Dough: If you want to have fresh cookies on demand, freezing the dough is a great option. Roll the cookie dough into individual balls as directed in the recipe. Place them on a baking sheet lined with parchment paper and flash freeze until firm (about 1-2 hours). Once firm, transfer the frozen dough balls to a Ziplock bag or an airtight freezer-safe container. They can be stored in the freezer for up to 3 months. When you’re ready to bake, simply place the frozen dough balls on a prepared baking sheet and bake from frozen, adding about 1 minute to the original bake time.
- Freezing Baked Cookies: To freeze baked cookies, ensure they are completely cooled first. Wrap each cookie individually in plastic wrap, then place them in an airtight freezer-safe container or a heavy-duty Ziplock bag. They can be frozen for up to 2 months. Thaw them at room temperature before serving.
- A Note on Marshmallow Texture: While freezing is a convenient option, be aware that the texture of the Lucky Charms marshmallows might change slightly after freezing and thawing. They may become a bit chewier or lose some of their initial crispness. However, the cookies will still be absolutely delicious!

Frequently Asked Questions (FAQs) about Lucky Charms Cookies
Lucky Charms Cookies are a playful twist on classic sugar cookies. They feature a soft, buttery sugar cookie base that is generously mixed with and topped by the colorful, dehydrated marshmallows found in Lucky Charms cereal. They offer a unique blend of a traditional cookie with a fun, magical cereal twist.
Despite their leprechaun mascot and association with “luck,” Lucky Charms cereal is an American creation by General Mills. These cookies, therefore, are not traditionally Irish, but they are a super fun and festive way to celebrate St. Patrick’s Day with a whimsical, American-inspired treat!
Absolutely! If you’re looking to add chocolate chips, I highly recommend using white chocolate chips. Their creamy, sweet flavor profile complements the vanilla sugar cookie base and the Lucky Charms marshmallows beautifully, without overpowering the distinctive taste of the cereal. Milk or dark chocolate might clash a bit with the sugar cookie base.
Several factors contribute to their perfect soft and chewy texture: using softened (not melted) butter, room temperature egg, the precise ratio of flour, and most importantly, not overbaking them. Taking them out of the oven when the centers are still slightly soft ensures they remain tender after cooling.
Occasionally, you might find bags of “just marshmallows” from Lucky Charms in specialty stores or online retailers, especially around St. Patrick’s Day. However, the most common and fun way to get them is to simply buy a box of traditional Lucky Charms cereal and pick out the marshmallows. It’s a delightful task, especially for kids!


Print Recipe
Lucky Charms Cookies
A soft and delicious sugar cookie filled and topped with Lucky Charms marshmallows, making these a colorful and sweet treat perfect for St. Patrick’s Day or any day you need a little magic!
Prep Time: 15 mins
Cook Time: 10 mins
Total Time: 25 mins
Servings: 30 cookies
Ingredients
- 1 cup unsalted butter, softened
- 1 1/4 cups granulated sugar
- 1 egg, at room temperature
- 2 teaspoons vanilla extract
- 2 1/2 cups all-purpose flour
- 1/2 teaspoon baking soda
- 1/2 teaspoon baking powder
- 1/4 teaspoon salt
- 2 cups Lucky Charms marshmallows, divided (1 cup for dough, 1 cup for topping)
Equipment
- Baking Sheet
- Parchment Paper
- Stand Mixer (or Hand Mixer)
- Cookie Scoop (size 40 recommended)
Instructions
- Preheat oven to 350°F (175°C). Line a baking sheet with parchment paper.
- In the bowl of a stand mixer fitted with a paddle attachment, cream the softened butter and granulated sugar until light and fluffy, about 2-3 minutes. Scrape down the sides of the bowl as needed.
- Add the room temperature egg and vanilla extract, beating until well combined.
- In a separate bowl, whisk together the all-purpose flour, baking soda, baking powder, and salt. Gradually add the dry ingredients to the wet mixture, mixing on low speed until just combined. Be careful not to overmix.
- Gently stir in 1 cup of the Lucky Charms marshmallows until just incorporated.
- Scoop and roll the dough into 2-tablespoon sized balls (using a size 40 cookie scoop works perfectly for consistency). Place them on the prepared baking sheet, leaving some space between each cookie.
- Bake for 9-11 minutes, or until the edges are set and the tops are no longer shiny but still look soft in the center.
- Remove from the oven and immediately press several of the reserved Lucky Charms marshmallows onto the tops of each warm cookie for added festive appeal.
- Let the cookies cool on the baking pan for 5 minutes before transferring them to a wire rack to cool completely.
- Store in an airtight container for 3-5 days.
Notes
- Store baked Lucky Charms cookies in an airtight container at room temperature for 4-5 days for optimal freshness.
- To freeze cookie dough: Roll dough into balls, flash freeze on a baking sheet until firm, then transfer to a freezer bag or airtight container for up to 3 months. Bake from frozen, adding about 1 minute to the baking time.
- To freeze baked cookies: Let them cool completely, then wrap each cookie in plastic wrap and store in an airtight container or freezer bag for up to 2 months. Note that marshmallow texture may change after freezing.
- This recipe was adapted from our popular Easter Sugar Cookies Recipe.
Nutrition Information (per cookie)
- Calories: 137 kcal (7%)
- Carbohydrates: 18g (6%)
- Protein: 2g (4%)
- Fat: 6g (9%)
- Saturated Fat: 4g (20%)
- Polyunsaturated Fat: 1g
- Monounsaturated Fat: 1g
- Trans Fat: 1g
- Cholesterol: 22mg (7%)
- Sodium: 41mg (2%)
- Potassium: 22mg (1%)
- Fiber: 1g (4%)
- Sugar: 9g (10%)
- Vitamin A: 197 IU (4%)
- Calcium: 7mg (1%)
- Iron: 1mg (6%)
Author: Whitney Wright
Course: Dessert
Cuisine: American
Did you make this recipe?
Please leave a star rating and review on the blog post letting me know how you liked this recipe! Take a picture and tag @saltandbaker on TikTok, Instagram, and Facebook so I can see what you’re making!
Related Festive Recipes You’ll Love
Looking for more delightful treats to celebrate with? Explore these other fantastic recipes:
- Energizing Green Smoothie Recipe
- Classic Key Lime Pie
- BYU Mint Brownies (Copycat Recipe)
- Refreshing Virgin Mint Julep
- Easy Mint Chip Cake Box Cookies
Did you make this recipe? I’d love to hear about it! Click here to leave a rating and review, or scroll below the recipe card and do so there.
Stay up-to-date by following us on Instagram, TikTok, Facebook, and Pinterest.
This recipe was originally published on March 5, 2021. It was republished on March 2, 2022, and further updated and expanded on [Current Date, e.g., March 10, 2024] to include additional information, photos, and enhanced SEO optimization.