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Key Lime Icebox Cake – Enjoy the refreshing zest of key lime pie in a no-bake cake with layers of creamy filling and graham crackers that soften to a cake-like texture. Simple to make and irresistibly delicious, it’s a cool treat everyone will love.
Let’s kick off your summer dessert game with this Key Lime Icebox Cake, a simple yet spectacular treat that brings the classic flavors of key lime pie into a fuss-free, no-bake cake form.
This recipe layers crisp graham crackers with a rich filling of key lime and cream cheese, transforming into a soft, cake-like texture as it chills. It’s a foolproof treat that doesn’t even require you to turn on the oven, keeping your kitchen cool during those sweltering summer days.
Whether you’re hosting a barbecue, need a refreshing dessert after a pool day, or just want something sweet and satisfying without the hassle, this icebox cake is your perfect solution.
And if you’re in the mood to explore more no-bake wonders, don’t miss my Boston Cream Pie Icebox Cake or a No-Bake Oreo Cheesecake. Two more great desserts for summer.
Why You’ll Love Key Lime Pie Ice Box Cake
- Effortless No-Bake Convenience: Escape the summer heat with this no-bake dessert that doesn’t require an oven. Mix, layer, and chill — it’s that simple to prepare, making it ideal for relaxed summer days or last-minute gatherings.
- Versatile Dessert Option: This Key Lime Icebox Cake is not only great as an after-dinner treat but also shines as a centerpiece for brunches, picnics, or get-togethers.
- Perfect Make-Ahead Dessert: Prepare this Key Lime Icebox Cake ahead of time and let it set in the fridge. The layers will meld together, making it even more flavorful. This dessert is a delicious and convenient option for seamless entertaining, allowing you to enjoy your event without any last-minute prep.
What You’ll Need
Be sure to scroll to the bottom of the post for the FULL PRINTABLE recipe card.
- Cream Cheese
- Powdered Sugar
- Key Lime Juice
- Heavy Cream
- Powdered Sugar
- Vanilla Extract
- Graham Crackers
For the Topping
- Heavy Cream
- Powdered Sugar
- Vanilla Extract
- Lime Zest
- Lime Wedges
How To Make Key Lime Ice Box Cake
- Mix Cream Cheese Filling: Use an electric mixer to beat the softened cream cheese with powdered sugar until smooth. Then, gradually beat in the key lime juice to incorporate it fully into the creamy mixture.
- Whip the Cream: In a separate bowl, use an electric mixer with a whisk attachment to whip the heavy cream, gradually adding powdered sugar and vanilla extract until it forms stiff peaks.
- Combine Cream Mixtures: Gently fold the whipped cream into the cream cheese mixture, combining them until smooth while maintaining the fluffy texture.
- Layer the Cake: Arrange a single layer of graham crackers at the bottom of a 13×9-inch baking dish. Spread half of the cream mixture over the crackers. Add another layer of graham crackers and the remaining cream mixture. Finish with a final layer of graham crackers.
- Prepare the Topping: Whip additional heavy cream with powdered sugar and vanilla until stiff peaks form. Spread this over the top layer of graham crackers and sprinkle with fresh lime zest for added flavor and garnish.
- Chill to Set: Refrigerate the assembled cake for 4-5 hours to allow the graham crackers to soften and the flavors to meld, resulting in a firm, cake-like texture. If you’d like, you can garnish with lime wedges just before serving.
Recipe Tips & Tricks
- Keep it Airy: To combine the whipped cream with the cream cheese mixture without losing volume, use a rubber spatula and gently fold the whipped cream in. Avoid stirring vigorously to maintain the airiness of the whipped cream. This is what keeps the filling fluffy and not dense.
- Use Store-Bought Whipped Topping: For an even quicker assembly, you can use store-bought whipped topping like Cool Whip instead of making your own. It’s stable and holds up well in the layers and as a topping.
- Ensure Ingredients are Room Temperature: Bring the cream cheese to room temperature before mixing to prevent lumps and achieve a smoother, creamier texture in your filling.
- Chill Your Mixing Bowl: Before whipping the cream, chill your mixing bowl and whisk in the freezer for about 15 minutes. This helps the cream whip faster and increases volume.
If you don’t have key lime juice, you can substitute regular lime juice. The flavor will be slightly different but still delicious.
Yes, you can use coconut whipped topping in place of the heavy cream, powdered sugar, and vanilla in the filling, and in place of the whipped cream topping. Pair that swap with dairy-free cream cheese to make a non-dairy version of this cake.
Leftover Key Lime Icebox Cake can be covered with plastic wrap or stored in an airtight container and kept in the refrigerator for up to 3 days.
While you can freeze Key Lime Icebox Cake, the texture of the cream layers might change slightly upon thawing, becoming a bit more watery. If you decide to freeze it, wrap the cake tightly in plastic wrap and aluminum foil and consume within a month for best quality. Thaw in the refrigerator overnight before serving.
Key Lime Ice Box Cake
Ingredients
- 2 8 oz packages cream cheese, softened
- 3/4 cup powdered sugar
- 1/2 cup key lime juice
- 2 cups heavy cream
- 1/2 cup powdered sugar
- 1 teaspoon vanilla extract
- 1 box graham crackers
Topping
- 1 cup heavy cream
- 1/4 cup powdered sugar
- 1/2 teaspoon vanilla extract
- Zest of 2 limes
- Lime wedges, for garnish
Instructions
- Using an electric mixer, beat cream cheese and 3/4 cup sugar together until smooth and creamy. Beat in key lime juice until smooth. Pour into a separate bowl and set aside.
- Whip heavy cream, using the whisk attachment of a mixer, until it becomes soft peaks. Add powdered sugar and vanilla. Whip until stiff peaks.
- Fold whipped cream into cream cheese mixture.
- Place a single layer of graham crackers into the bottom of a 13×9-inch baking dish. Spread 1/2 of whipped cream mixture over crackers. Repeat with another layer of crackers and remaining cream. Top with 1 more layer of crackers.
- Prepare topping by whipping heavy cream, using the whisk attachment of a mixer, until it becomes soft peaks. Add powdered sugar and vanilla. Whip until stiff peaks.
- Spread topping over top layer of crackers. Sprinkle lime zest over cream.
- Place in refrigerator for 4-5 hours before serving.
- Garnish with lime wedges to serve.
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
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This is one dreamy dessert!! Perfect for this ridiculously hot weather we’ve been having!!
I used the “click here” AND went to Imperial Sugar website, can’t get to the recipe…….. Help!
The recipe is right there on the Imperial Sugar website that you click on when you used the Click Here link. As the post says, I did this recipe for Imperial Sugar, and it was sponsored so it is all there.
It’s incredibly refreshing and perfect for warm days. The no-bake aspect made it a breeze to prepare, and the creamy layers were absolutely luscious.
I love all that wonderful lime flavor and the super creamy texture. This was a hit!
This was so creamy and the lime favor was perfect!
Wow! This is my new favorite summer dessert to make! So good and refreshing, everyone in my family loved it!
My Mom is a key lime fan so I made this when they visited last weekend. Almost everyone had seconds! It is a keeper!
This was so great and so easy! We loved it.