Description

These Key Lime Pie Rice Krispie Treats combine the nostalgic crunch of classic Rice Krispies with the bright, tangy flavors of key lime juice and zest. Enhanced with a hint of vanilla and optional white chocolate chips, this easy no-bake dessert is perfect for summertime or any occasion where a refreshing sweet treat is desired. Quick to prepare on the stovetop and set without baking, these bars offer a delightful twist on a childhood favorite.

Ingredients

Scale

Base Ingredients

3 tablespoons unsalted butter
1 (10 oz) bag mini marshmallows
5 cups Rice Krispies cereal
1 cup crushed graham crackers

Flavorings

1 tablespoon key lime juice
1 teaspoon key lime zest
1/2 teaspoon vanilla extract

Optional Additions

1/2 cup white chocolate chips
Extra lime zest for garnish

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Instructions

Melt the Butter and Marshmallows: In a large pot over medium heat, melt the unsalted butter. Add the mini marshmallows and stir constantly until they are fully melted and the mixture is smooth, ensuring there are no lumps.
Add Lime and Vanilla Flavors: Remove the pot from heat. Stir in the key lime juice, key lime zest, and vanilla extract to infuse the marshmallow mixture with bright citrus and warm vanilla notes.
Mix in Dry Ingredients: Quickly fold in the Rice Krispies cereal and crushed graham crackers, stirring gently but thoroughly until all pieces are evenly coated with the marshmallow mixture.
Incorporate White Chocolate Chips (Optional): If using, fold in the white chocolate chips once the mixture has slightly cooled but is still pliable, so the chips don’t melt completely and add pockets of creamy sweetness.
Press into Pan and Cool: Transfer the mixture into a greased 9×9-inch baking pan. Using a buttered spatula or wax paper, press the mixture down firmly and evenly to compact it into an even layer.
Let Set and Garnish: Allow the treats to cool completely at room temperature until set. Once firm, slice into 12 squares and garnish with extra lime zest if desired for a vibrant presentation and extra zing.

Notes

For a stronger lime flavor, add a few drops of lime extract along with the lime juice and zest.
Use fresh key lime juice and zest whenever possible for the best, most authentic flavor, though bottled juice is acceptable.
Store the treats in an airtight container at room temperature for up to 3 days to maintain freshness and texture.