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Lucky Charms Treats stacked up down shot
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5 from 4 votes

Lucky Charms Marshmallow Treats

Lucky Charms Treats are the perfect no bake cereal bars to celebrate St. Patrick's Day. A fun snack for kids, perfect for parties and potlucks and inspired by everyone's favorite Rice Krispies treat bars, these have a double dose of marshmallow and all the salty, buttery goodness you remember.
Prep Time10 mins
Chill Time1 hr
Total Time1 hr 10 mins
Course: Dessert, Snack
Cuisine: American
Servings: 24 pieces
Calories: 96kcal


  • 8 cups Lucky Charms cereal
  • 6 cups large marshmallows
  • 4 tablespoons butter
  • 1 tablespoon vanilla extract


  • Line a 9 x 13 pan with parchment paper and set aside
  • Start by pouring your Lucky Charms cereal into a large mixing bowl. 
  • Add the butter to a large saucepan and melt over medium high heat. Once melted, add in the marshmallows and vanilla extract and stir continuously until the marshmallows have completely melted. 
  • Pour the melted marshmallows over the Lucky Charms cereal and quickly stir to combine. Move to your prepared pan and press cereal down firmly to create even bars
  • Move to the refrigerator to chill for 1 hour. Remove from pan by lifting up the parchment paper and cut into squares.



  • Don't walk away from your marshmallows when they are melting on the stove.  All that sugar can quickly burn.
  • Having trouble smoothing out the Lucky Charms cereal in the baking pan? Spray your hands with non-stick spray and use your hands to press the cereal into place. You can also place a piece of plastic wrap on top of the cereal and press the cereal down through the plastic wrap
  • Remove your cereal bars from the refrigerator and let come to room temperature to serve.  If served straight from the fridge, the Lucky Charms Treats won't be ooey gooey :)


Serving: 1piece | Calories: 96kcal | Carbohydrates: 17g | Protein: 0.9g | Fat: 2g | Saturated Fat: 1g | Polyunsaturated Fat: 0.19g | Monounsaturated Fat: 0.62g | Cholesterol: 5mg | Sodium: 67mg | Potassium: 20mg | Fiber: 0.6g | Sugar: 10g | Vitamin C: 1.7mg | Calcium: 340mg | Iron: 0.2mg