You’ll love this recipe if you like this Rice Krispie Treats with Marshmallow Fluff and Granola Bars.
These Lucky Charms Rice Krispies Treats are a simple, no-bake dessert that comes together fast and works for just about any occasion. They use classic Rice Krispies Treats as a base, with Lucky Charms mixed in for color, texture, and that familiar cereal flavor. Mixing two cereals keeps the bars thick, soft, and easy to slice without falling apart.
This recipe is quick enough for weeknights, last-minute parties, or school treats. Everything melts and mixes in one pot, and there’s no oven time at all. The extra marshmallows on top add a light crunch and make the bars look fun without complicating the process.
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💛 Why you’ll love this recipe
- Ready in about 15 minutes from start to finish
- No baking required
- Uses basic ingredients that are easy to find
- Rice Krispies help the bars hold together without turning dense
- Great for parties, holidays, bake sales, or casual desserts
➡️ Ingredients you’ll need
⏲ How to make this Lucky Charms Rice Krispies Treats recipe
👉 Easy ingredient swaps
- Butter: Salted is fine—skip the kosher salt.
- Marshmallows: Regular marshmallows work; cut in half so they melt faster.
- Vanilla: Optional, but it helps the sweetness taste less one-note.
- Cereal: If you’re short on one cereal, replace it with more of the other. All Lucky Charms = looser bars. More Rice Krispies = firmer bars.
✨ Variations
- Extra marshmallow bits: Stir in ½ cup minis after taking the pot off the heat.
- Chocolate finish: Drizzle melted white or milk chocolate on cooled bars.
- Thicker squares: Use a 9×9 pan for taller bars.
〰️ How to serve
- Lunchbox — Wrap individual squares once fully cool.
- Drinks — Milk, coffee, or hot cocoa all work.
💬 FAQs
Do I have to use both cereals?
Yes, for best results. The Rice Krispies help the bars stay thick and hold together, while the Lucky Charms add color and texture.
Why shouldn’t I press the mixture too hard?
Pressing too firmly compacts the cereal and makes the bars harder to bite. A light, even press keeps them soft.
How should these be stored?
Keep them in an airtight container at room temperature for up to 3 days. For longer storage, wrap each bar individually and freeze for up to 2 months. Let them sit at room temperature before serving.
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Lucky Charms Rice Krispies Treats
Ingredients
- 8 Tablespoons unsalted butter, 1 stick
- 20 ounce mini marshmallows, 2 bags
- 1 teaspoon pure vanilla extract
- ¼ teaspoon kosher salt
- 6 cups Lucky Charms cereal
- 4½ cups Rice Krispies cereal
- ½ cup Lucky Charms marshmallows, for topping
Instructions
- Prep the pan: Line a 9×13-inch pan with parchment and lightly spray. Set aside ½ cup Lucky Charms marshmallows for the top.
- Mix the cereals: Combine 6 cups Lucky Charms cereal and 4½ cups Rice Krispies cereal in a large bowl.
- Melt the butter: Melt 8 Tablespoons unsalted butter in a large pot over medium heat until just bubbling.
- Melt the marshmallows: Stir in 1 bag of mini marshmallows until mostly melted, then add the second bag and stir until smooth.
- Add flavor: Remove from heat and stir in 1 teaspoon pure vanilla extract and ¼ teaspoon kosher salt.
- Coat the cereal: Add the cereal mix and fold quickly until everything is evenly coated.
- Press into the pan: Transfer to the pan and press into an even layer using greased hands or a greased spatula.
- Top it off: Sprinkle the reserved Lucky Charms marshmallows on top and press lightly so they stick.
- Cool and slice: Cool about 45 minutes, then cut into 12–16 squares.
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