Lucky Charms Rice Krispies Treats
These Lucky Charms Rice Krispies Treats are quick, no-bake cereal bars made with butter, two bags of mini marshmallows, and a mix of Lucky Charms plus Rice Krispies for better structure. Everything melts in one pot, gets folded with the cereal, then pressed into pan and topped with extra Lucky Charms marshmallows. After about 45 minutes of cooling, they slice into thick, soft squares that work well for snacks, parties, and easy make-ahead treats.
Servings: 16 servings
Calories: 245kcal
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 9x13-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.
Notes
Butter choice: Unsalted butter keeps the flavor balanced. If using salted butter, skip the kosher salt.
Marshmallow texture: Fresh mini marshmallows melt smoother and help the bars set up soft. Stale marshmallows can melt unevenly.
Why use two cereals: Rice Krispies help the bars hold together and cut cleanly, while Lucky Charms adds color and crunch.
Keep tools from sticking: Lightly spray or butter your spatula, hands, and the knife before mixing, pressing, and slicing.
Nutrition
Serving: 65g | Calories: 245kcal | Carbohydrates: 46g | Protein: 2g | Fat: 7g | Saturated Fat: 4g | Polyunsaturated Fat: 0.5g | Monounsaturated Fat: 2g | Trans Fat: 0.2g | Cholesterol: 15mg | Sodium: 194mg | Potassium: 44mg | Fiber: 1g | Sugar: 26g | Vitamin A: 1080IU | Vitamin C: 9mg | Calcium: 62mg | Iron: 5mg