Lucky Charms Cereal Bars
If you need a quick no-bake dessert that feels extra fun and festive for St Patrick’s Day, these Lucky Charms Cereal Bars are about to make your day. They’re gooey, chewy, buttery, and packed with those colorful little marshmallows that make everyone smile before they even take a bite.
Why you’ll love these kid friendly sweets
What I love most about these bars is how ridiculously simple it is to bring these magically delicious guys to life. Only three ingredients, one pot, one pan, and just a few minutes of stirring. No baking, no fancy steps, and no need to turn your kitchen upside down.
They’re basically the rainbow cousin of classic cereal marshmallow treats, which makes them especially perfect for easy St. Patrick’s Day desserts and kid friendly holiday treats.
These bars are:
- No-bake
- Three ingredients
- Fast and beginner friendly
- Perfect for parties and school treats
- Easy to customize with mix-ins
- A fun make ahead dessert
Ingredients
- Breakfast cereal with frosted oat cereal and colorful marshmallows (like this or this or this)
- Mini marshmallows (like these)
- Butter
How to make Lucky Charms cereal bars
Prep your pan – Grease a glass or metal baking dish with cooking spray. This will make it much easier to lift the bars out later. For thinner bars, use a 9×13 baking dish. If you prefer thicker bars, use a 9 x9 pan .
Melt the butter – In a large pot over low heat, melt 5 tablespoons butter.
Add the marshmallows – Once the butter is melted, stir in 5 cups of mini marshmallows. Stir gently until the marshmallows are melted and smooth. Tip: Don’t rush this part with high heat. If the marshmallow gets to hot, your bars will be hard.
Stir in the cereal – Remove the pot from the heat and quickly stir in about 4 cups Lucky Charms cereal. Fold gently until the cereal is evenly coated in the marshmallow mixture. Note: I like these bars extra gooey. If you prefer more cereal than marshmallow, use 5 cups of Lucky Charms.
Press into the pan – Spoon the mixture into your prepared pan. To prevent sticking, spray the back of a spatula or wax paper with cooking spray and press the mixture it into an even layer. Try not to smash it down too hard or the bars can get dense.
Optional – If you want to add some extra color to the tops of the bars, press some extra marshmallow shapes into the top of the before they cool.
Let them set – Leave the bars at room temperature until firm enough to cut.
Slice and serve – Cut into squares or rectangles and serve. For bake sales or parties, I like to keep the bars bigger. When serving to kids, I cut them into smaller squares.
Leftover Storage
STORE:
Store at room temperature for up to 5 days, in an airtight container to keep bars fresh.
FAQ’s
Yes! They are made by the same method, but Lucky Charms bars are sweeter and more colorful because of the cereal marshmallows.
Mini marshmallows melt a little faster, but large marshmallows work just fine.
Absolutely. They’re a great make ahead, no-bake dessert for school parties, birthday treats, and St. Patrick’s Day snack tables.
More fun no-bake recipes to try
Sugar Cookie Fruit Pizzas
Funfetti Cake Dip
Dipped Apple Bites
Lucky Charms Cereal Bars
Equipment
- 1 baking dish 9 x9 or 9×13 work well
- 1 spatula
- 1 large pot
- mixing bowls optional
Ingredients
Instructions
- Grease a glass or metal baking dish with cooking spray. This will make it much easier to lift the bars out later. For thinner bars, use a 9×13 baking dish. If you prefer thicker bars, use a 9 x9 pan .
- In a large pot over low heat, melt 5 tablespoons butter.
- Once the butter is melted, stir in 5 cups of mini marshmallows. Stir gently until the marshmallows are melted and smooth. Tip: Don’t rush this part with high heat. If the marshmallow gets to hot, your bars will be hard.
- Remove the pot from the heat and quickly stir in about 4 cups Lucky Charms cereal. Fold gently until the cereal is evenly coated in the marshmallow mixture. Note: I like these bars extra gooey. If you prefer more cereal than marshmallow, use 5 cups of Lucky Charms.
- Spoon the mixture into your prepared pan. To prevent sticking, spray the back of a spatula or wax paper with cooking spray and press the mixture it into an even layer. Try not to smash it down too hard or the bars can get dense.
- If you want to add some extra color to the tops of the bars, press some extra Lucky Charm's marshmallow shapes into the top of the before they cool.
- Leave the bars at room temperature until firm enough to cut.
- Cut into squares or rectangles and serve. For bake sales or parties, I like to keep the bars bigger. When serving to kids, I cut them into smaller squares.
