Here is a step-by-step recipe for making the Best Key Lime Pie Ever — rich, tart, creamy, and perfectly balanced with a buttery graham cracker crust and a lightly sweetened whipped cream topping.
🥧 The Best Key Lime Pie Ever
🧾 Ingredients
✅ For the Graham Cracker Crust:
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1 ½ cups (150g) graham cracker crumbs (about 10 full sheets)
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⅓ cup (67g) granulated sugar
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6 tbsp (85g) unsalted butter, melted
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Pinch of salt (optional, enhances flavor)
✅ For the Filling:
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4 large egg yolks
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1 can (14 oz / 396g) sweetened condensed milk
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½ cup (120 ml) fresh key lime juice (from ~20–25 key limes or 4–5 Persian limes)
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1 tablespoon key lime zest (optional but recommended)
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Pinch of salt
✅ For the Whipped Cream Topping:
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1 cup (240 ml) heavy whipping cream, cold
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¼ cup (30g) powdered sugar
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½ teaspoon pure vanilla extract
🔪 Equipment:
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9-inch pie dish
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Hand mixer or stand mixer
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Microplane or zester (for lime zest)
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Juicer
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Mixing bowls
👩🍳 Instructions
1. Preheat the Oven
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Preheat your oven to 350°F (175°C).
2. Make the Crust
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In a medium bowl, combine graham cracker crumbs, sugar, and melted butter. Mix until the crumbs are fully coated and the mixture looks like wet sand.
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Press the mixture firmly into the bottom and up the sides of a 9-inch pie dish. Use a flat-bottomed glass or measuring cup to press evenly.
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Bake the crust for 8–10 minutes, until lightly golden and fragrant.
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Remove and let cool slightly while you make the filling.
3. Prepare the Filling
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In a mixing bowl, whisk the egg yolks until thickened and pale, about 2–3 minutes (this helps stabilize the custard).
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Add the sweetened condensed milk and whisk until fully combined.
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Stir in the lime juice, lime zest, and a pinch of salt. Mix until smooth and slightly thickened.
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Pour the filling into the pre-baked crust, smoothing the top with a spatula.
4. Bake the Pie
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Bake at 350°F (175°C) for 15–17 minutes, until the center is just set but still has a slight jiggle.
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Remove from oven and let cool to room temperature (about 1 hour).
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Chill in the fridge for at least 4 hours (preferably overnight) until fully set.
5. Make the Whipped Cream Topping
Just before serving:
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In a chilled mixing bowl, beat the cold heavy cream with powdered sugar and vanilla until soft to medium peaks form.
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Spoon or pipe the whipped cream on top of the chilled pie.
🌿 Optional Garnishes:
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Fresh lime zest
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Thin lime slices or twists
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Graham cracker crumbs
📝 Tips for Success
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Use fresh key lime juice if possible — the flavor is brighter and more authentic than bottled.
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If you can’t find key limes, Persian limes work great too.
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Don’t overbake — the pie should still jiggle slightly when it comes out.
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Chill thoroughly for the cleanest slices.
🍽️ Serving
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Serve chilled with fresh whipped cream.
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Store leftovers in the fridge for up to 3 days.
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This pie also freezes beautifully for up to 2 months (wrap tightly without whipped cream).