Key Lime Pie

Why This Easy Key Lime Pie Recipe Works So Well

This key lime pie recipe has become my family’s go-to summer dessert. My husband Josh requests it every birthday. The filling is ultra-smooth and just tart enough, with a buttery graham cracker crust that adds crunch. It’s everything you want in a key lime pie.

3 Reasons to Love This Key Lime Pie Recipe

• Only 3 ingredients for the filling: sweetened condensed milk, egg yolks, and fresh lime juice.
• The no-roll graham cracker crust comes together in minutes, just stir and press.
• The pie bakes in under 20 minutes and sets up beautifully in the fridge.

Key Ingredients for Homemade Key Lime Pie

• Sweetened condensed milk: Use full-fat, not fat-free, for the creamiest texture. It cannot be substituted with evaporated milk.
• Limes: Key limes are traditional, but regular Persian limes work perfectly. Always use fresh juice; bottled juice will alter the flavor.
• Graham crackers: Look for plain graham crackers. You can substitute with crushed shortbread or vanilla wafers.

Kitchen Tools for Making Key Lime Pie

• 9-inch pie plate
• Citrus squeezer for easy juicing
• Food processor or rolling pin for crushing graham crackers
• Measuring cups and spoons
• Mixing bowls
• Whisk

Key Lime Pie Tips for a Perfect Filling and Crust

To get the most juice from your limes, roll them on the counter before cutting, then microwave them for 15 seconds. A citrus squeezer makes the job even easier. For the crust, press the crumbs into the pie plate firmly using the bottom of a measuring cup, this prevents crumbling later.

When the filling is done, the center will still jiggle a little; it will firm up as it cools. Let the pie cool to room temperature on a rack before refrigerating.

Expert Tips for the Best Key Lime Pie

For the smoothest filling, whisk the sweetened condensed milk and egg yolks together until fully combined before adding the lime juice. The acid will start to thicken the mixture, so adding it last ensures an even texture. Also, zest the lime before juicing, it’s much easier to grate the zest from a whole fruit. When making the crust, try to get the crumbs as fine as possible for a more compact base. A food processor works great for this.

Key Lime Pie Variations to Try

This easy key lime pie recipe is easy to adapt. For a different crust, try crushed shortbread cookies or ginger snaps instead of graham crackers. You can also substitute half the lime juice with lemon or Meyer lemon juice for a slightly different citrus note. If you prefer a less tart pie, reduce the lime juice to 1/3 cup and add an extra tablespoon of sweetened condensed milk.

Serving Suggestions for Key Lime Pie

Serve the pie chilled or at room temperature. A generous dollop of freshly whipped cream is the classic topping, but you can also add a few thin lime slices for garnish. If you want a little extra crunch, sprinkle some toasted coconut flakes on top.

How to Store Key Lime Pie

Store leftover key lime pie loosely covered in the refrigerator for up to 3 days. For best results, add whipped cream just before serving, not beforehand, so it stays fresh.

How to Freeze Key Lime Pie

Key lime pie freezes surprisingly well. Once the pie is completely chilled, wrap it tightly in plastic wrap, then a layer of foil, and freeze for up to 2 months. When ready to serve, thaw it in the refrigerator overnight. Add whipped cream after thawing, just before serving.

Key Lime Pie FAQs