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Key Lime Pie Rice Krispie Treats Recipe

4.7 from 146 reviews

These Key Lime Pie Rice Krispie Treats combine the classic crispy, chewy texture of Rice Krispies with the bright and tangy flavors of key lime. Enhanced with key lime juice, zest, and topped with graham cracker crumbs and a white chocolate drizzle, these treats offer a refreshing twist on a nostalgic favorite. Perfect for summer parties or anytime you want a zesty, sweet snack.

Ingredients

Scale

Main Ingredients

  • 5 cups Rice Krispies cereal
  • 10 cups mini marshmallows
  • 5 tablespoons unsalted butter
  • 1/2 cup key lime juice (fresh or bottled)
  • 2 tablespoons key lime zest

Toppings and Mix-ins

  • 1 cup graham cracker crumbs
  • 1 cup white chocolate chips
  • 1/2 teaspoon coconut oil (for smooth chocolate drizzle)

Optional Add-ins

  • 1/2 cup coconut flakes
  • 1/4 cup crushed nuts
  • A few drops green food coloring

Instructions

  1. Melt the Butter & Marshmallows: In a large saucepan, melt the unsalted butter over low heat, then add the mini marshmallows. Stir continuously until the marshmallows have melted into a smooth, creamy mixture.
  2. Add Lime Flavor: Stir the key lime juice and key lime zest into the melted marshmallow mixture to infuse the dessert with fresh, tangy flavor.
  3. Combine the Mixture: Pour the lime-infused marshmallow mixture over the Rice Krispies cereal in a large bowl. Fold gently with a spatula until all the cereal is evenly coated.
  4. Assemble: Transfer the coated cereal mixture into a parchment-lined baking dish. Spread it out evenly and press gently to form an even layer, being careful not to over-pack the mixture.
  5. Add Toppings: Sprinkle graham cracker crumbs evenly over the surface of the treats. Then, melt the white chocolate chips together with the coconut oil until smooth and drizzle this over the top for a decorative and flavorful finish.
  6. Chill: Place the assembled treats in the refrigerator for 30 minutes to allow the chocolate drizzle to set and the treats to firm up.
  7. Serve: Slice the chilled treats into squares and enjoy this refreshing, zesty dessert.

Notes

  • For extra tropical flavor, mix in optional coconut flakes or crushed nuts with the cereal before pressing into the pan.
  • Add a few drops of green food coloring to the marshmallow mixture for a more vibrant key lime color.
  • Store leftovers in an airtight container at room temperature for up to 3 days or refrigerate for longer freshness.
  • Use fresh key lime juice if available for the best flavor, but bottled juice works well too.

Keywords: Key lime pie, Rice Krispie treats, lime dessert, easy no-bake, summer snack