Ultra-Creamy Key Lime Pie Recipe for Perfect Citrus Flavor

My Key Lime Pie has an incredibly creamy filling packed with bright key lime flavor. The filling bakes over a crisp graham cracker crust and is finished with swirls of lightly sweetened whipped cream.

This pie is easier than most: the filling comes together quickly with only 6 ingredients. Because it needs time to chill, it’s ideal as a make-ahead dessert for parties, potlucks, or holiday gatherings.

Why you’ll love this Key Lime Pie:

• A Crust that Holds Up – The correct ratio of butter to graham cracker crumbs, a touch of granulated sugar, and gentle packing make a sturdy crust that slices cleanly.
• True Key Lime Flavor – Fresh key lime juice and lime zest deliver bright, tart lime notes in every bite.
• Ultra-Creamy Texture – A bit of cream cheese folded into the filling gives the pie a silky, dreamy mouthfeel.

Ingredient Overview:

The full recipe with precise measurements and directions is in the recipe card below. Use the table of contents to navigate if needed.

• Graham crackers – Ready-made graham cracker crumbs are convenient. If using whole crackers, pulse them very fine in a food processor; you may need a touch more butter if the crumbs are drier.
• Butter – Salted butter adds flavor, but use unsalted if you prefer and adjust salt elsewhere in your menu.
• Granulated sugar – A small amount in the crust helps it bind and hold together.
• Eggs – Use large eggs at room temperature for best incorporation.
• Cream cheese – Full-fat cream cheese, softened to room temperature, gives the filling richness and body.
• Key limes – Smaller and tarter than regular limes, key limes give the authentic flavor. If they’re unavailable, bottled key lime juice or regular lime juice can work in a pinch.

How to make this Key Lime Pie:

Step 1: Make the crust. Combine graham cracker crumbs, melted butter, and granulated sugar. Press the mixture into a 9-inch pie dish (or an 8–9 inch square pan) and bake briefly to set the crust. Let it cool slightly while you prepare the filling.

Step 2: Make the filling. Beat softened cream cheese until smooth. Add sweetened condensed milk and mix until fully incorporated. Stir in key lime juice, lime zest, and a splash of vanilla. Add the egg yolks last, mixing until just combined so the filling remains silky.

Step 3: Bake the pie. Pour the filling into the prepared crust and bake at a moderate temperature until the center is slightly set but still has a gentle wobble. Aim for an internal temperature in the low-150s°F if using an instant-read thermometer.

Step 4: Cool and chill. Let the pie cool to room temperature on a rack, then refrigerate for at least 3 hours (or up to 48 hours). The pie surface may rise slightly during baking but will settle as it chills.

Step 5: Prepare the whipped cream. Whip cold heavy cream with powdered sugar and vanilla until stiff peaks form. For piping, use stabilized whipped cream; otherwise, make it right before serving so it stays light and fresh.

Serving & Storing:

Do not add whipped cream until ready to serve to keep it fresh. Slice and garnish with extra lime zest or thin lime slices. Store leftovers in an airtight container in the refrigerator for 3–4 days.

FAQs

Special Tools:

• Mixer – A handheld or stand mixer makes beating the cream cheese and whipping cream quick and easy.

More of my best lime recipes:

Cake & Cupcakes

Key Lime Cupcakes with Lime Curd

Cheesecake

Key Lime Pie Cheesecake

Cookies

Key Lime Pie Cookies (Make-Ahead Options!)

No-Bake Desserts

Easy Homemade Lime Curd