Dessert

Key Lime Bars Recipe

Bylilan Sage October 10, 2026October 10, 2026

Introduction

These Key Lime Bars offer a perfect balance of tangy lime flavor and sweet, creamy filling atop a buttery graham cracker crust. They’re easy to make and ideal for a refreshing dessert or a summer treat.

The image shows a tray of lime bars cut into nine square pieces on a white marbled surface. Each bar has two main layers: a light golden brown crust at the bottom with a crumbly texture and a thick, smooth pale yellow creamy lime filling on top. Some squares are decorated with small dollops of white whipped cream and thin lime wedges or lime zest sprinkled lightly across the surface. One square is lifted slightly with an old-fashioned knife with a silver blade and wooden handle. The bars have a slightly cracked and rustic appearance around the edges. Photo taken with an iphone --ar 4:5 --v 7

Ingredients

1 1/2 cups graham cracker crumbs
1/3 cup granulated sugar
1/2 cup unsalted butter (melted)
1 14-ounce can sweetened condensed milk
1/2 cup key lime juice
1/2 teaspoon vanilla extract
4 ounces cream cheese (softened)
4 large egg yolks
Pinch of kosher salt
1 tablespoon lime zest
Whipped cream (for garnish, optional)

Instructions

Step 1: In a bowl, combine graham cracker crumbs, granulated sugar, and melted butter until the mixture is evenly moistened.
Step 2: Press the crumb mixture firmly into the bottom of a parchment-lined 8-inch square baking pan. Bake at 350°F for 8–10 minutes until lightly golden. Remove from oven.
Step 3: In another bowl, whisk together sweetened condensed milk, key lime juice, vanilla extract, softened cream cheese, egg yolks, salt, and lime zest until smooth and creamy.
Step 4: Pour the filling evenly over the baked crust. Return the pan to the oven and bake for 15–20 minutes at 350°F, until the bars are mostly set but the center remains slightly jiggly.
Step 5: Let the bars cool to room temperature, then refrigerate for at least 3 hours to fully set.
Step 6: Once chilled, cut into squares and garnish with whipped cream if desired before serving.

Tips & Variations

For extra zest, increase the lime zest to 2 tablespoons or add a tiny bit of lime extract.
Use regular lime juice if key limes aren’t available, though key lime juice provides a unique tang.
Line the pan with parchment paper with overhang for easy removal of bars.
Chill overnight for firmer bars and enhanced flavors.
Top with fresh berries or a sprinkle of toasted coconut for a tropical twist.

Storage

Store the Key Lime Bars covered in the refrigerator for up to 4 days. Keep them chilled until ready to serve for the best texture. Reheat is not recommended as these bars are best enjoyed cold or at room temperature.

How to Serve

A square piece of pie is shown on a white plate with subtle textured lines around the edge, resting on a white marbled surface. The pie has two visible layers: a brown crumbly crust at the bottom and a thick, smooth creamy pale yellow filling on top. On the middle of the pie slice, there is a dollop of white whipped cream garnished with small green lime zest sprinkles. A silver fork is placed next to the pie on the plate. The background includes a blurred view of a white pie dish with more pie and a partially visible lime. Photo taken with an iphone --ar 4:5 --v 7

Serve this delicious recipe with your favorite sides.

FAQs

Can I make these bars ahead of time?

Yes, these bars can be made a day in advance and stored covered in the refrigerator. This helps the flavors meld and the bars to firm up nicely.

What can I use instead of cream cheese?

You can substitute cream cheese with mascarpone for a slightly richer texture or Greek yogurt for a lighter alternative, though the texture will vary slightly.