If you’re searching for the perfect refreshing, creamy, and tangy dessert to bring to your next gathering, Key Lime Lush is about to become your go-to treat. This dreamy layered dessert features a buttery graham cracker crust, a luscious cream cheese layer, a vibrant key lime pudding center, and a cloud-like whipped topping. It’s easy to make, doesn’t require an oven, and delivers a punchy flavor that perfectly balances tartness and sweetness. Whether you’re hosting a summer barbecue, planning a holiday meal, or just need a little sunshine in dessert form, this recipe is sure to impress.

Why You’ll Love This Recipe

This Key Lime Lush recipe is perfect for:

Busy home cooks who want a no-fuss dessert.
Key lime enthusiasts looking for a new way to enjoy their favorite citrus flavor.
Party planners needing a make-ahead treat.
Families who want a light, refreshing dessert without heating up the kitchen.

It’s light, cool, and indulgently creamy, with just the right amount of zing from fresh key lime juice and zest. Plus, it’s a guaranteed crowd-pleaser!

Ingredients Needed

Graham Cracker Crust:

1½ cups graham cracker crumbs
1/4 cup granulated sugar
6 tablespoons butter, melted

Cream Cheese Layer:

1 bar (8 oz) full-fat cream cheese, softened
1 cup powdered sugar
2 teaspoons vanilla extract
2 cups Cool Whip, thawed

Key Lime Pudding Layer:

3 tablespoons lime jello mix
1/2 cup boiling water
1 box (3.4 oz) white chocolate instant pudding mix
1 cup half and half
1/2 cup freshly squeezed key lime juice
1 tablespoon key lime zest
1½ cups Cool Whip, thawed

Whipped Topping & Garnish:

2 cups Cool Whip, thawed
Key lime zest
Graham cracker crumbs (optional)

Kitchen Equipment You’ll Need

8×8-inch square baking dish
Parchment paper or nonstick spray
Mixing bowls (various sizes)
Electric hand mixer or stand mixer
Whisk
Spatula
Measuring cups and spoons
Citrus juicer (optional, but helpful)

Step-by-Step Instructions

1. Prepare Your Pan

Line an 8×8-inch baking dish with parchment paper for easy removal or spray it with nonstick cooking spray. Set aside.

2. Make the Graham Cracker Crust

In a bowl, stir together the graham cracker crumbs and granulated sugar. Add the melted butter and mix until the texture resembles wet sand. Press the mixture firmly into the bottom of your prepared pan, creating an even layer. Chill the crust in the fridge while you prepare the next layer.

3. Create the Cream Cheese Layer

In another bowl, beat the softened cream cheese until smooth using an electric mixer. Add the powdered sugar and vanilla extract, beating until well combined. Gently mix in the Cool Whip on low speed until fully incorporated. Spread the cream cheese mixture evenly over the chilled crust.

4. Make the Key Lime Pudding Layer

In a small bowl, whisk together the lime jello mix and boiling water until fully dissolved. Set aside.

In a separate bowl, whisk together the instant white chocolate pudding mix and half and half. Add the key lime juice and lime zest, mixing until smooth. Slowly pour in the lime jello mixture, whisking to combine. Gently fold in the Cool Whip, being careful not to deflate the mixture. Let the pudding sit for a few minutes to thicken slightly.

Spread the pudding mixture evenly over the cream cheese layer.

5. Top It Off

Spread the final 2 cups of Cool Whip evenly over the lime layer. Garnish with a sprinkle of key lime zest and optional extra graham cracker crumbs for a pretty and flavorful finish.

6. Chill and Serve

Cover the dish with plastic wrap or a lid and refrigerate for at least 6 hours, preferably overnight, to allow the layers to fully set. Slice into squares and serve chilled.

Expert Tips and Shortcuts

Use bottled key lime juice if fresh key limes aren’t available. Nellie & Joe’s Famous Key West Lime Juice is a great option.
Pre-crushed graham crackers save time. You can find graham cracker crumbs in the baking aisle.
Make it tropical by swapping the white chocolate pudding for coconut pudding.
Want extra crunch? Add chopped macadamia nuts between the pudding and whipped cream layers.
Add more color by dying the lime pudding layer a light green with food coloring for a festive presentation.

Variations and Swaps

Gluten-Free Version: Use gluten-free graham crackers for the crust.
Low-Sugar Option: Swap regular Cool Whip for a sugar-free version and use a sugar-free pudding mix.
Lemon Lush: Substitute lemon juice and lemon zest for a bright lemony twist.
Berry Topping: Garnish with fresh blueberries, raspberries, or strawberries for an extra pop of color and flavor.

How to Store Leftovers

Key Lime Lush stores beautifully! Cover tightly with plastic wrap or a lid and refrigerate for up to 4 days. Because it’s made with dairy and whipped topping, it should not be left out at room temperature for more than 2 hours.

Freezing Tip: You can freeze the entire lush if needed. Cover tightly and freeze for up to 1 month. Thaw overnight in the refrigerator before serving. Note that freezing may slightly change the texture of the whipped topping.

Perfect Food and Drink Pairings

Pair your slice of Key Lime Lush with:

A tall glass of iced tea or lemonade.
A chilled glass of sparkling rosé or prosecco for a more elegant touch.
Fresh berries on the side for a refreshing, colorful complement.
Grilled seafood dishes like shrimp skewers or fish tacos at a summer cookout.

FAQs About Key Lime Lush

Can I use regular limes instead of key limes?

Yes! Regular limes work just fine if key limes aren’t available. The flavor will still be delicious, though slightly less floral and distinct.

What if I don’t have Cool Whip?

You can use homemade stabilized whipped cream instead. Just make sure it’s whipped to stiff peaks for the best texture.

Can I make this ahead of time?

Absolutely. In fact, it’s better when it’s made the night before to allow the layers to set properly.

How do I get clean slices when serving?

For the cleanest cuts, chill the lush thoroughly and use a sharp knife dipped in hot water and wiped clean between each slice.

Is there a substitute for graham crackers in the crust?

Yes! Try using crushed vanilla wafers, shortbread cookies, or even digestive biscuits for a different flavor twist.

Final Thoughts

Key Lime Lush is the ultimate effortless dessert that will impress everyone lucky enough to grab a slice. Its fresh, citrusy flavor and luxurious layers make it a standout at any event. Plus, it’s so easy to make that you’ll find yourself whipping it up for all kinds of celebrations—or just because!

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Key Lime Lush

Key Lime Lush: The Ultimate No-Bake Summer Dessert