Skip to main content

Lucky Charms Bar Cookies Recipe

Getting ready for St. Patrick's Day? Grab your pink hearts, yellow stars and green clovers for some Lucky Charms Bar Cookies.
Lucky Charm Bar Cookie Recipe on

What can you do with a box of Lucky Charms?

If you've eaten your charm bracelet already, how about a batch of Lucky Charms Bar Cookies?


I caught my little leprechauns trying to steal a box of Lucky Charms.

My Little Leprechaun on TodaysMama #LuckyCharms

Of course they were happy to help when I needed the marshmallows removed.

Sorting Out Lucky Charms Marshmallows #LuckyCharms

When dreaming up this recipe, I consciously worked to offset the sweetness of the cereal with some saltiness.

These Lucky Charm Bar Cookies are a mash up of White Chocolate Decadence Brownies and Salted Peanut Chews - a blondie brownie crust topped with a layer of toasted marshmallows and a crunchy, peanut-filled white chocolate topping. Don't forget to serve with a daily recommended serving of milk.

Lucky Charms Bar Cookies Recipe
1 cup crushed Lucky Charms cereal, oat pieces only (approx. 2 cups cereal = 1 cup crushed)
1 cup flour
1/2 teaspoon salt
1/4 teaspoon baking soda
1/2 teaspoon baking powder
1/2 cup butter, softened
1/3 cup brown sugar
1 teaspoon vanilla
2 egg yolks

Scroll to Continue

Recommended for You

2-3 cups miniature marshmallows (traditional kind, not from cereal)
1 package (12 oz) white chocolate chips
2/3 cup corn syrup
3 tablespoons butter
1 1/2 teaspoons vanilla
2 cups salted peanuts
1 cup Lucky Charms, oat pieces
Lucky Charms marshmallows to garnish

Preheat oven to 350 degrees. In a food processor, crush 2 cups Lucky Charms cereal oat pieces until a fine flour. Pour into a medium bowl and add remaining dry ingredients (flour, salt, soda and powder). In a large mixing bowl or food processor, blend together softened butter, brown sugar, eggs and a vanilla. Mix in dry ingredients on low speed until well incorporated. Spray a 9 x 13 glass pan with cooking spray and spread batter evenly in pan.

Smooth Crust in Pan #LuckyCharms #happyhelper

Bake for 12-15 minutes until edges turn golden. Immediately sprinkle miniature marshmallows over brownie crust and bake an additional 1-2 minutes or until marshmallows just begin to puff.

Cool while preparing topping.

Lucky Charm Bar Cookies Toppings #LuckyCharms

In a large sauce pan over low heat, melt together white chocolate chips, corn syrup, and butter. Stir constantly until mixture is smooth. Remove from heat and add vanilla. Stir in peanuts and cereal. Immediately spoon warm topping over marshmallows. Garnish with Lucky Charms marshmallows (assuming the marshmallows you removed to begin are still available). Refrigerate until firm. Cut into bars. Makes approximately 36 bars.

Lucky Charm Bar Cookies on TodaysMama #LuckyCharms

More St. Patrick's Day Ideas

Lucky Charm Charm Bracelet

Shamrock Treasure Hunt Printable

Mini Key Lime Tarts with Gingersnap Cookie Crust


making lucky charms cookies

Lucky Charms Cookies

Making Lucky Charms cookies is our idea of a great St. Patrick's Day treat!

Lucky Charms Box and Bracelet

Lucky Charms Charm Bracelet

Making a Lucky Charms Charm Bracelet is the easiest treat ever...if you can make them before your kids eat the whole box of cereal.

The Lucky Charms Challenge

Lucky Charms Challenge: Eating and Crafting with Lucky Charms

It's the Lucky Charms challenge: what to make and eat this St. Patrick's Day with your kids.

Lucky Charms Shamrock Marshmallow Treat

Lucky Charms Marshmallow Treats

Cute shamrock marshmallow treats perfect for St. Patrick's Day school parties.


Peanut Butter Bar Cookies aka Salted Peanut Chews

Salted Peanut Chews are the best peanut butter bar cookies you'll ever make! The secret? Check out the layer of marshmallow in the middle!

Yummy Chocolate Coconut Bars

Chocolate Coconut Bars Recipe

What's better than vacation? A batch of Chocolate Coconut Bars waiting for you when you get home from vacation. Thank You, MOM!

pumpkin bars recipe

Pumpkin Bar Recipe

Try this classic pumpkin bar recipe with cream cheese frosting for your next gathering. Simple and elegant...You'll wish you'd doubled the batch!