These Lucky Charms Cereal Bars are a fun and delicious twist on classic Rice Krispies treats. They are a quick and easy no-bake dessert that’s perfect for St Patrick’s Day.

You’ll need a few simple ingredients and about 10 minutes to whip these up. Then gently pat the gooey butter, marshmallow, and cereal mixture into place while you force yourself to patiently allow them to set up.

Lucky Charms cereal bars cut into squares in a baking sheet. Lucky charms bars, lucky charms rice krispies treats.

Lucky Charms Cereal Bars

These cute No Bake Lucky Charms Bars are just as delicious as Rice Krispies Treats, only with more color and adorable marshmallow shapes. They’re perfect for kids parties around St Patrick’s Day, but they can really be made at any time of the year.

If you’re looking for other cereal bar variations, try our Fruity Pebbles Rice Krispies Treats or our Chocolate Rice Krispies Treats. And for another cute St Patty’s day cookie, be sure to try our Lucky Charms Cookie Recipe.

A stack of Lucky Charms cereal bars. Lucky charms cereal recipes.

Lucky Charm Bars Ingredients

  • Salted Butter – I prefer to use salted butter for the little boost in flavor, but you can use unsalted it you prefer. 
  • Marshmallows – mini marshmallows are great to use because they melt faster. You can substitute regular marshmallows, but I recommend chopping them up a little first. No matter what, be sure to use fresh marshmallows or you’ll risk losing that chewy texture.
  • Vanilla Extract – you can use vanilla extract or substitute coconut extract for a slightly different flavor.
  • Lucky Charms Cereal – this is a great way to turn regular Rice Krispies Treats into a cute St Patricks Day dessert. Of course, you could substitute other brands of puffed cereal like Fruity Pebbles, Froot Loops, or Golden Grahams.

How to Make Lucky Charm Cereal Bars

  1. Prepare your baking dish. Coat the inside of a 9″ x 13″ baking dish with butter or nonstick cooking spray and set aside.
  2. Melt the butter and marshmallows. In a large dutch oven over medium heat, melt the butter.  Add the marshmallows and stir until the marshmallows are almost all melted.  Turn the heat off and add the vanilla extract. Stir.
  3. Add the cereal. Add the cereal and carefully mix until combined.
  4. Press into your baking dish. Pour the cereal mixture into the prepared baking dish.  Using the back of a spoon, spread the mixture evenly into the baking dish. Lightly wet or spray your hands with nonstick cooking spray, then gently pat down the cereal bars.
  5. Cool. Allow to cool at room temperature for at least 20 minutes, or until they hold their shape.
  6. Cut and serve. Cut into 3″ squares and enjoy!
No Bake Lucky Charms Bars cut into squares on a tray. Lucky charms rice krispies treats.

Lucky Charm Bar Tips and Tricks

  • Save a handful of Lucky Charms to gently press into the tops of the bars once finished. It will make them extra pretty.
  • Always use fresh marshmallows!  It makes a huge difference in the overall texture.
  • Try your hardest not to press down too hard on these Lucky Charms bars in the pan because the harder you press, the harder and more dense they will become once they set up.
  • Rather than buttering your baking dish, you can line it with parchment paper to keep it from sticking.
  • I know it’s hard, but don’t try to cut these no-bake cookie bars until they are set up or they won’t hold their shape and will start to fall apart.
how to make the best Lucky Charms No Bake Cookie Bars recipe

Frequently Asked Questions

Can you freeze no bake cookie bars?

Yup! You can store them in one single sheet or as cut squares. Just make sure they are in an airtight container or freezer bags and they will store well for up to 1 month. Pull out to room temperature to thaw.

Should I store cereal bars in the refrigerator?

You should avoid storing these in the fridge. The moisture in the fridge will make them soggy and stale very quickly.

Why are my Lucky Charm Cereal Bars hard?

The most likely reason for hard cereal bars is that they were pressed too hard into the pan. This means there is less fluffiness (aka air) leaving the finished bars dense and hard. Try to press gently into the pan, just enough to make them even and make sure the Lucky Charms stick to the bars.

Storing Instructions

  • Room Temperature: store in even layers separated by wax paper in an airtight container at room temperature for up to 3 days.
  • Freezer: these can be stored in freezer bags or another airtight container and frozen for up to 1 month.
5 from 1 vote

Lucky Charms Cereal Bars Recipe

Author The Carefree Kitchen
These Lucky Charms cereal bars are a fun and delicious twist on the classic Rice Krispies Treats. They are a quick and easy no-bake dessert that’s perfect for St Patrick’s Day.
Prep: 10 minutes
Total: 10 minutes
Yields15 people

Ingredients

  • 1/4 cup salted butter
  • 14 ounces mini marshmallows
  • 3 cups Lucky Charms Cereal
  • 3 cups Rice Krispies Cereal
  • 1 teaspoon vanilla extract

Instructions
 

  • In a large Dutch oven over medium heat, melt the butter.  Add the marshmallows and stir until the marshmallows are almost all melted.  Turn the heat off and add the vanilla extract, then stir in the Lucky Charms and Rice Krispies by hand until combined.
  • Pour the cereal mixture into a lightly greased 9" x 13" baking dish.  Using the back of a spoon, spread the mixture evenly into the baking dish. Lightly wet or spray your hands with nonstick cooking spray, then gently pat down the cereal bars.
  • Allow to cool at room temperature for at least 20 minutes, or until they hold their shape.  Cut into 3" squares and enjoy!

Notes

Storing instructions: store in even layers separated by wax paper in an airtight container at room temperature for up to 3 days, or a freezer for up to 1 month.

Nutrition

Calories: 77kcal | Carbohydrates: 11g | Protein: 1g | Fat: 4g | Saturated Fat: 2g | Polyunsaturated Fat: 0.3g | Monounsaturated Fat: 1g | Trans Fat: 0.1g | Cholesterol: 8mg | Sodium: 101mg | Potassium: 24mg | Fiber: 0.4g | Sugar: 3g | Vitamin A: 670IU | Vitamin C: 5mg | Calcium: 32mg | Iron: 3mg
Disclaimer: Nutritional values were calculated using a third-party tool and are provided as an estimation only.
Course Dessert
Cuisine American
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More of the Best No Bake Treats Recipes

These soft and gooey Lucky Charms Bars are quick, easy, and delicious no bake cookie bars. They’re the perfect sweet treat to serve on St Patrick’s Day, or any other time of year.

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