Description

These Key Lime Pie Rice Krispie Treats combine the classic crispy, gooey texture of traditional Rice Krispies with the zesty, refreshing flavors of key lime. Infused with key lime zest and juice, marshmallows, and graham cracker crumbs, these no-bake bars are a bright and tangy dessert perfect for summer gatherings or anytime you crave a fruity twist on a nostalgic treat.

Ingredients

Scale

Wet Ingredients

3 tablespoons unsalted butter
1 tablespoon key lime zest
1/4 cup key lime juice (fresh or bottled)
1 (10-ounce) bag mini marshmallows
1/2 teaspoon vanilla extract
Pinch of salt

Dry Ingredients

6 cups Rice Krispies cereal
1 cup crushed graham crackers

Toppings (Optional)

1 cup white chocolate chips
Extra lime zest for garnish

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Instructions

Prepare the Pan: Grease a 9×13-inch baking dish thoroughly to prevent sticking and set it aside for later.
Melt Butter and Add Lime: In a large saucepan over medium-low heat, melt the unsalted butter. Stir in the key lime zest and key lime juice and cook for about 30 seconds to release the lime’s bright flavors.
Incorporate Marshmallows: Add the mini marshmallows to the pan and stir continuously until they are completely melted and the mixture is smooth and uniform in texture.
Finish Marshmallow Mixture: Remove the saucepan from heat and stir in the vanilla extract and a pinch of salt to balance the flavors.
Combine Cereal and Graham Crackers: Gently fold in the Rice Krispies cereal and crushed graham crackers, stirring carefully to coat them evenly with the marshmallow mixture without crushing the cereal.
Press Mixture Into Pan: Quickly transfer the mixture into the prepared baking dish. Using a greased spatula or a piece of wax paper, press it down firmly and evenly to create a flat surface.
Optional White Chocolate Drizzle: If desired, melt the white chocolate chips in a microwave or double boiler until smooth and drizzle over the top of the pressed mixture.
Garnish and Cool: Sprinkle extra lime zest over the top for added flavor and visual appeal. Allow the treats to cool completely at room temperature before cutting into bars to ensure they hold their shape.

Notes

For a stronger lime flavor, add a few drops of lime extract to the marshmallow mixture.
Store the treats in an airtight container at room temperature to keep them fresh for up to 3 days.