Crumbl Cookie Inspired Lucky Charms Cookies

The Crumbl craze has taken over and finally made its way to my kitchen counter (and yours soon too!) with these Crumbl Cookie-inspired Lucky Charms cookies. We start with a cereal sugar cookie base, topped with a velvety cereal milk frosting, and a sprinkle of toasted lucky charms. They carry all the nostalgia of being a kid with a bowl of lucky charms in the morning, while still feeling gourmet and elevated. Plus, they’re adjusted to be slightly smaller than actual Crumbl cookies (because I don’t know about you, but I can barely finish one in a single sitting) and have carefully balanced flavors so the experience isn’t overwhelmingly sweet.

Ingredients You Will Need For Lucky Charms Crumbl Cookies:

Lucky Charms Cereal – Our star ingredient! You will need roughly 2 cups total of lucky charms cereal total. About 1 1/2 cup of just the cereal (no marshmallows) will be ground up in the cookie dough, and the rest will be used to for the cereal milk and the toasted topping.
Flour – You will need 2 cups of all-purpose flour for the cookie dough.
Leaveners – You will need 1/2 teaspoon of both baking soda and baking powder for the cookie dough.
Salt – You will need 1/2 teaspoon of salt for the cookie dough and another 1/2 teaspoon for the frosting to help cut the sweetness and bring out the cereal flavor.
Butter – You will need 2 sticks of unsalted butter, half for the cookie dough and half for the buttercream frosting, in addition to an extra 1/2 tablespoon to toast the cereal in for the cookie topping. Make sure it is unsalted so your flavors are properly balanced and at room temperature so it incorporates easily.
Sugars – You will need 1 cup of granulated sugar for the cookie dough, and 2 cups of powdered sugar for the frosting.
Egg – You will need 1 large egg for the cookie dough, ideally at room temperature.
Vanilla – You will need 1/2 tablespoon of vanilla extract for the cookie dough and 1/2 teaspoon for the frosting as well. I like using a clear vanilla extract for this as the flavor profile really works well with the lucky charms flavor, but feel free to use a different vanilla if you’d like.
Milk – You will need 1/2 cup of whole milk, or any plant-based milk if you prefer, to make the cereal-infused milk that will flavor the frosting for these cookies.

Notes:

What should I use to blend the Lucky Charms cereal into a powder?

I would recommend either a food processor or a spice/coffee grinder. If you don’t have either of these, you can break it down by hand in a bag, just be sure to crush it as fine as possible. You want to have a fine, sandy powder without any big lumps in it.

How do I make cereal milk?

All you have to do is simply make a mini bowl of cereal! Add lucky charms and milk to a bowl (about 1/2 cup of each) and let it sit for about 20 minutes to allow the cereal to infuse the milk.

How do I make the swirl of frosting?

Either use a ziplock or a piping bag with the tip cut off (roughly a centimeter wide), nothing fancy. Start at the center of the cookie and spiral outwards with the stream of frosting. It helps to lift the bag slightly above the cookie and let the frosting stream slowly fall as you pipe the swirl.

More Unique Crave-Worthy Cookies

Tips For Making Crumbl Lucky Charms Cookies:

Use unsalted butter! For other recipes this may not matter as much, but because the Lucky Charms cereal has a little salt in it as well, this recipe is specifically balanced for when unsalted butter is used. Your cookies and frosting may be too salty if you use salted butter.
Measure in grams. I always include both volume and gram measurements for my recipes, including this one, but using grams is always a much more reliable way to ensure you have good results with your baking.