As I rummaged through my pantry searching for a summer treat, a cheerful idea struck me: what if I combined the beloved charm of Rice Krispie Treats with the refreshing zing of key lime pie? Enter the Key Lime Pie Rice Krispie Treats—a no-bake delight that captures the essence of summer in every bite. This quick, fun recipe not only whisks away the hassle of turning on the oven but also promises a crowd-pleasing dessert that both kids and adults will adore at family picnics or potlucks. Just think of the joyful faces as you reveal these chewy, tart treats! Ready to embark on a delicious adventure that’s oh-so-simple? Let’s dive in!

Why are Key Lime Pie Rice Krispie Treats a must-try?
Simplicity, these no-bake delights come together in just a few easy steps, making them perfect for those who don’t want to spend hours in the kitchen. Bright, Tangy Flavor mimics the classic key lime pie that everyone loves, delivering a refreshing taste with every bite. Crowd-Pleasing Treat great for parties, these treats will impress family and friends, just like a classic dessert spread of Cilantro Lime Steak or Steak Queso Rice. Customizable, you can easily mix in additional ingredients like coconut or nuts, making them your own. Quick to Prepare – within 30 minutes you’ll have a delicious treat chilling in your fridge, ready to be devoured!
Key Lime Pie Rice Krispie Ingredients
• To create your own irresistible Key Lime Pie Rice Krispie Treats, gather these tasty ingredients!
For the Base
- Rice Krispies – adds the delightful crunch that complements the creamy filling.
- Marshmallows – they bring sweetness and provide the sticky binding power.
- Butter – enriches the mixture while helping to melt the marshmallows.
For the Flavor
- Key Lime Juice – infuses the signature tartness synonymous with key lime pie.
- Lime Zest – intensifies the lime flavor and adds aromatic oils.
For Texture
- Graham Cracker Crumbs – contributes a classic pie-like crunch, taking these treats to the next level.
For Drizzling (Optional)
- White Chocolate – provides a rich, sweet touch to enhance the zesty lime flavor of the treats.
With these ingredients, you’re just a step away from brightening your summer with delicious Key Lime Pie Rice Krispie Treats!
Step‑by‑Step Instructions for Key Lime Pie Rice Krispie Treats
Step 1: Prepare the Pan
Start by greasing a 9×13-inch baking pan with non-stick spray or butter. Make sure to cover the entire surface to prevent the treats from sticking later. Set the pan aside as you gather your ingredients and prepare to create your delightful Key Lime Pie Rice Krispie Treats.
Step 2: Melt the Butter and Marshmallows
In a large pot, combine 3 tablespoons of butter and 10 ounces of mini marshmallows. Heat over low heat, stirring constantly until the mixture is smooth and fully melted, about 5-7 minutes. The marshmallows should be creamy and glossy, creating the essential binding for your treats.
Step 3: Add Key Lime Ingredients
Once your marshmallow mixture is perfectly melted, remove it from heat. Stir in 1/4 cup of key lime juice and the zest from one lime. Mix well until everything is thoroughly combined, allowing the refreshing citrus aroma to fill your kitchen. This step infuses the Key Lime Pie Rice Krispie Treats with their signature tangy flavor.
Step 4: Combine Rice Krispies and Graham Cracker Crumbs
Now, gently fold in 6 cups of Rice Krispies and 1 cup of graham cracker crumbs into the marshmallow mixture. Use a spatula to ensure all the cereal and crumbs are evenly coated, taking care not to crush the Rice Krispies. The mixture should be sticky yet well combined, showing signs of the classic pie-inspired texture.
Step 5: Press into Pan
Transfer the sticky mixture into your prepared baking pan, spreading it out with the spatula. Press down firmly and evenly to create a compact layer, ensuring the Key Lime Pie Rice Krispie Treats will hold their shape once set. Aim for a consistent thickness across the pan for even cooling.
Step 6: Chill
Cover the pan with plastic wrap and place it in the refrigerator, allowing the treats to set for about 30 minutes. This chilling time will firm up the mixture, making it easier to cut into squares later. You’ll know they’re ready when they feel firm to the touch.
Step 7: Drizzle with White Chocolate
If you’d like to add a sweet touch, melt 1/2 cup of white chocolate in a microwave-safe bowl, heating in 30-second intervals until smooth. Once melted, use a spoon to drizzle it over the chilled Rice Krispie Treats. Allow the chocolate to set for a few minutes, adding an elegant finish to your delightful creation.

Storage Tips for Key Lime Pie Rice Krispie Treats
Room Temperature: Store in an airtight container at room temperature for up to 1 week, preserving the chewy texture and zesty flavor.
Fridge: For extended freshness, you can refrigerate the treats in an airtight container for up to 2 weeks; however, they may lose some crunch.
Freezer: If you’d like to keep them longer, freeze the treats for up to 3 months. Wrap them tightly in plastic wrap and place in a freezer-safe bag; thaw overnight in the fridge before enjoying.
Reheating: To restore some crunch, let treats come to room temperature after refrigeration or freezing before serving; avoid microwaving as it may make them too soft.
Expert Tips for Key Lime Pie Rice Krispie Treats
• Fresh Marshmallows: Using fresh marshmallows will ensure a softer texture; older marshmallows can lead to a tougher treat.
• Zesty Flavor Boost: If you love a strong lime taste, feel free to increase the lime zest. It enhances the Key Lime Pie Rice Krispie flavor beautifully!
• Don’t Over-Press: While pressing the mixture into the pan, avoid over-packing. This prevents the treats from becoming overly hard once set.
• Cleanup Ease: Use non-stick cooking spray on tools and the pan to make cleanup a breeze, ensuring you can enjoy your treat without the fuss!
• Storage Tips: Keep your Key Lime Pie Rice Krispie Treats in an airtight container at room temperature for up to a week to maintain their delightful texture.
Key Lime Pie Rice Krispie Variations
Feel free to let your creativity shine and customize these delightful treats to enhance their flavor and texture!
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Tropical Twist: Add 1/2 cup of coconut flakes for a delightful tropical touch that beautifully complements the lime.
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Nutty Delight: Mix in 1/2 cup of chopped nuts, like almonds or pecans, for an added crunch and depth of flavor.
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Colorful Fun: Use a few drops of food coloring to create visually appealing treats that can brighten up any dessert table. Kids will love the color pop!
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Citrus Swap: Substitute key limes with lemons or oranges for a different tart flavor profile—perfect for those who like to explore new citrus adventures.
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Creamy Surprise: For an indulgent twist, fold in 1/2 cup of mini chocolate chips or white chocolate chips for a sweet surprise in every bite.
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Savory Edge: Add a sprinkle of sea salt on top after drizzling with white chocolate to create a sweet and salty contrast that will elevate the overall flavor.
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S’mores Magic: Incorporate 1 cup of mini marshmallows and swap graham cracker crumbs for chocolate cookie crumbs, turning your treats into a s’mores-inspired delight.
Consider these variations as a way to elevate the classic flavor of these treats. They can also complement other summer favorites like Fish Tacos Lime or a refreshing Steak Queso Rice alongside your dessert spread! Enjoy the creative process of making these Key Lime Pie Rice Krispie Treats uniquely yours.
What to Serve with Key Lime Pie Rice Krispie Treats?
These delightful treats are perfect for brightening any summer gathering, and pairing them with complementary flavors will create an unforgettable meal experience.
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Coconut Macaroons: These chewy coconut confections echo the tropical vibes of lime, enhancing the dessert table with a delightful crunch.
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Fresh Fruit Salad: A vibrant mix of berries, melons, and citrus will balance the sweetness and provide a refreshing counterpart to the treats.
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Chilled Lemonade: The tart and tangy notes of lemonade echo the flavors in the treats, making it a refreshing drink that everyone loves.
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Grilled Chicken Salad: Succulent grilled chicken mixed with crisp greens will add a savory element, contrasting beautifully with the sweet treats.
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Key Lime Pie: For the ultimate citrus lovers, a classic key lime pie offers a rich and creamy counterpart that ties beautifully with the Rice Krispie treats.
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Vanilla Ice Cream: A scoop of vanilla ice cream drizzled with lime syrup will create a refreshing dessert experience, cooling down hot summer days.
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Minted Iced Tea: The herbal freshness of mint adds a cooling touch to any meal, brightening the palate alongside the fruity treats.
By pairing your Key Lime Pie Rice Krispie Treats with these delicious options, you’ll ensure a delightful balance of flavors and textures for your summer celebrations!
Make Ahead Options
These Key Lime Pie Rice Krispie Treats are perfect for meal prep enthusiasts! You can prepare the mixture up to 24 hours in advance, simply follow the initial steps and press it into the pan as directed. Once set, cover it tightly with plastic wrap to prevent any drying out and refrigerate. The graham cracker crumbs will maintain their crunch, while the overall flavor will deepen overnight. When you’re ready to serve, simply drizzle with melted white chocolate for an extra touch of sweetness and slice into squares. You’ll have a refreshing, no-bake dessert that’s just as delicious and ready to impress your guests with minimal last-minute effort!

Key Lime Pie Rice Krispie Treats Recipe FAQs
What type of Rice Krispies should I use for the best results?
Absolutely! Using standard Rice Krispies works perfectly, but feel free to try alternatives like brown rice cereal for a whole grain option. Whatever you choose, make sure they are fresh and crunchy for the best texture in your Key Lime Pie Rice Krispie Treats!
How should I store leftover Key Lime Pie Rice Krispie Treats?
Keep your treats in an airtight container at room temperature for up to 1 week. This method helps maintain their chewy texture and delightful flavor. If you prefer them to last longer, you can refrigerate them for up to 2 weeks, though some crispness may be lost.
Can I freeze Key Lime Pie Rice Krispie Treats?
Definitely! To freeze your treats, wrap them tightly in plastic wrap and place them in a freezer-safe bag or container. This method preserves their flavors and textures for up to 3 months. When you’re ready to enjoy them again, simply thaw them overnight in the fridge and allow them to sit at room temperature for a bit before serving.
What if my treats are too sticky or crumble when cutting?
Very! If your Key Lime Pie Rice Krispie Treats are too sticky after chilling, it may be due to pressing the mixture too tightly into the pan. Simply apply a little more gentle pressure next time. If they crumble upon cutting, try warming the knife with hot water before cutting to create cleaner slices. Using fresh marshmallows can also help create a better consistency.
Are Key Lime Pie Rice Krispie Treats suitable for those with allergies?
I recommend checking the labels closely! These treats contain marshmallows, which may have allergens like gluten or dairy, and the optional white chocolate can also contain allergens. If you’re serving them to guests, it’s best to use allergy-friendly marshmallows or chocolate substitutes—as always, cater to your guests’ dietary needs.

Key Lime Pie Rice Krispie Treats to Brighten Your Summer
Ingredients
Equipment
Method
- Prepare the pan by greasing a 9x13-inch baking pan with non-stick spray or butter.
- In a large pot, melt 3 tablespoons of butter with 10 ounces of mini marshmallows over low heat, stirring until smooth, about 5-7 minutes.
- Remove from heat and stir in 1/4 cup of key lime juice and the zest from one lime until well combined.
- Gently fold in 6 cups of Rice Krispies and 1 cup of graham cracker crumbs until evenly coated.
- Transfer the mixture into the greased pan, press down evenly to create a compact layer.
- Cover with plastic wrap and refrigerate for about 30 minutes to set.
- If desired, melt 1/2 cup of white chocolate and drizzle over the chilled treats.

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