No-Bake Key Lime Icebox Pie

No-Bake Key Lime Icebox Pie is creamy, refreshing, and incredibly easy to make at home. Because this chilled dessert uses simple ingredients, it comes together quickly while still looking elegant and bakery-worthy. Meanwhile, the tangy key lime filling perfectly balances the sweet buttery cracker layers, creating a cool dessert that feels light yet satisfying.

Icebox desserts became especially popular in the American South during the 1930s. At the time, home cooks loved making chilled treats without turning on the oven during hot summer months. As a result, layered desserts like this became family favorites for gatherings, holidays, and warm weekends.

In this version, the crackers soften overnight into delicate cake-like layers while the creamy lime filling becomes smooth and silky. Additionally, fresh lime zest adds a bright citrus aroma that makes every bite taste fresh and vibrant. Whether served for summer parties or simple family dinners, No-Bake Key Lime Icebox Pie is nostalgic, beautiful, and irresistibly delicious.

Recipe Yield: 9 servings

INGREDIENTS

2 sleeves buttery rectangular crackers
2 cups cold heavy whipping cream
1 can (14 oz.) sweetened condensed milk
2/3 cup fresh key lime juice
1 tsp vanilla extract
1 tbsp finely grated lime zest, plus extra for garnish
4 oz. full-fat cream cheese, softened
2 tbsp powdered sugar
1/8 tsp fine sea salt

INSTRUCTIONS

1. Prepare the lime filling:
In a large mixing bowl, beat the softened cream cheese until completely smooth and creamy with no lumps remaining. Then add the sweetened condensed milk, fresh key lime juice, vanilla extract, lime zest, and fine sea salt. Mix until smooth and slightly thickened.

2. Whip the cream:
In a separate chilled bowl, whip the cold heavy cream and powdered sugar until medium peaks form. The cream should hold its shape while still looking soft and silky. Then gently fold the whipped cream into the lime mixture until fully incorporated and fluffy.

3. Assemble the layers:
Spread a thin layer of the filling into the bottom of an 8×8-inch glass dish. Next, arrange a single even layer of crackers over the filling. Spread more filling evenly on top, making sure the crackers are fully covered edge to edge. Repeat the layers until all ingredients are used, finishing with the cream layer on top.

4. Chill overnight:
Cover tightly and refrigerate for at least 8 hours, although overnight chilling is strongly recommended for the best flavor and texture. During this time, the crackers soften into delicate cake-like layers while the filling firms into a creamy sliceable dessert.

5. Garnish and serve:
Before serving, sprinkle extra lime zest over the top for fresh citrus flavor and color. For extra clean slices, freeze the dessert for 15 minutes before cutting and wipe the knife between slices. Then serve chilled.

Helpful Tips to Perfect This Recipe

• Use freshly squeezed key lime juice whenever possible: Fresh juice creates a brighter, more authentic citrus flavor while also helping the filling thicken naturally. Bottled juice may taste slightly muted in comparison.
• Fully cover every cracker layer with filling: Any exposed cracker edges can remain dry after chilling. Therefore, spreading the cream mixture evenly ensures the entire dessert softens beautifully overnight.
• Do not rush the chilling time: Although the pie may look set earlier, overnight refrigeration creates the best soft icebox texture and the cleanest bakery-style slices. As a result, the dessert tastes richer and more balanced.