Lucky Charms Cereal Bars are fun, festive treats kids love! Crunchy Lucky Charms cereal is coated in a buttery marshmallow mixture to create easy no-bake cereal bars perfect for St. Patrick's Day or anytime a sweet craving strikes.
If you love classic Rice Krispie Treats, these Lucky Charms Cereal Bars will quickly become a favorite with the whole family! This fun twist on the classic treat swaps Rice Krispies for colorful Lucky Charms cereal, creating festive cereal treat bars packed with gooey marshmallows in every bite. With St. Patrick’s Day coming up, these easy 3-ingredient cereal bars are a festive dessert that comes together in about 10 minutes. If you’re planning a St. Patrick's Day party, these bars pair perfectly with my festive Kahlua White Leprechaun Cocktail.
Quick Look: Lucky Charms Cereal Bars
- Prep Time: 10 minutes
- Set Time: 1 hour
- Total Time: 1 hour 10 minutes
- Servings: 15 bars
- Key Ingredients: Lucky Charms cereal, marshmallows, butter
- Best For: St. Patrick's Day treats, lunch box snacks, easy no-bake desserts
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Why You’ll Love These Bars
• Only 3 ingredients: butter, marshmallows, and Lucky Charms cereal
• No-bake dessert that comes together in minutes
• A fun St. Patrick's Day treat kids and adults love, just like my St. Patrick’s Day Brownie Trifle dessert.
• Colorful cereal treat bars perfect for parties or lunch box snacks
Ingredient Notes
See the printable recipe card below for exact amounts and full instructions.
- Butter: Creates the rich base that holds the cereal bars together.
- Mini Marshmallows: Melt into a gooey mixture that coats the cereal. Fresh marshmallows work best.
- Lucky Charms Cereal: The colorful marshmallows make these festive bars perfect for St. Patrick's Day.
- Optional: Drizzle melted white chocolate over the bars for an extra sweet touch.
How To Make Lucky Charms Cereal Bars
Step 1. Spray a 9×13 pan with nonstick spray. Melt butter in a large pot over medium heat. Stir in marshmallows and cook until melted and smooth.
Step 2. Remove from heat and gently stir in the Lucky Charms cereal until evenly coated in the marshmallow mixture.
Step 3. Pour the mixture into the prepared pan and use parchment or wax paper to gently press it into an even layer.
Step 4. Allow the cereal bars to set for about 1 hour, then cut into 15 squares.
Tips for Success
- Use fresh marshmallows. They melt smoother and create softer cereal bars.
- Press gently into the pan. Pressing too firmly can make the bars dense instead of soft and chewy.
- Let the bars set completely. Allow them to set for about 1 hour before slicing for clean squares.
Storage
- Store bars in an airtight container at room temperature.
- Place parchment paper between layers to prevent sticking.
- Do not refrigerate, as the bars can become hard.
- Best enjoyed within 4 days.
Lucky Charms Cereal Bars Recipe FAQs
Use fresh marshmallows and press the mixture gently into the pan to keep the bars soft and chewy.
Yes. Make them up to 2 days in advance and store them in an airtight container at room temperature.
Yes. Drizzling melted white chocolate over the top adds extra sweetness and makes them great for parties.
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Lucky Charms Cereal Bars
Equipment
Ingredients
- 6 tablespoon butter
- 16 oz mini marshmallows
- 8 cups Lucky Charms cereal
Instructions
- Prep pan: Spray a 9×13 pan with nonstick spray.
- Melt: In a large pot over medium heat, melt butter. Stir in marshmallows and heat, stirring, until smooth.
- Mix: Remove from heat and stir in cereal until evenly coated.
- Press: Transfer to pan and gently press into an even layer using parchment or wax paper.
- Set & slice: Let set about 1 hour, then cut into 15 squares.
Notes
- Press gently – packing the mixture too firmly can make the bars dense.
- For extra color, save a few cereal marshmallows and press them on top before the bars set.
- Do not refrigerate; store at room temperature in an airtight container for up to 4 days.
Nutrition
Suzy Morgan says
is it possible to use any cereal 🤔
Kristin says
Absolutely! I have used Kix cereal before and its been great!