Edwards Key Lime Pie: Creamy, Tangy Copycat Recipe

Edwards Key lime pie is a creamy, tangy dessert with a crisp graham cracker crust and a smooth citrus filling. This homemade, Edwards-inspired version uses Key lime juice, sweetened condensed milk, and egg yolks, then chills until sliceable; a little whipped cream makes it ready to serve.

Ingredients

1 ½ cups (150 g) finely crushed graham cracker crumbs
5 tablespoons (70 g) unsalted butter, melted
3 tablespoons (38 g) granulated sugar
4 large egg yolks
1 can (14 ounces / 396 g) sweetened condensed milk
½ cup (120 ml) Key lime juice, preferably bottled 100% Key lime juice
1 tablespoon (6 g) finely grated lime zest, preferably from Key limes
¾ cup (180 ml) cold heavy whipping cream
1 tablespoon (8 g) powdered sugar
⅛ teaspoon vanilla extract
Thin lime slices or extra zest, for serving (optional)

Instructions

Heat the oven to 350°F (175°C). Set out a 9-inch (23 cm) pie plate. If using whole graham crackers, crush them finely in a food processor or place them in a sealed bag and crush with a rolling pin.
Combine the crumbs, melted butter, and granulated sugar in a bowl. Stir until the crumbs are evenly moistened, then press them firmly over the bottom and up the sides of the pie plate. Use the flat bottom of a measuring cup to compact the crust, especially where the base meets the sides.
Bake the crust for 8 minutes, then set it aside while you make the filling. Keep the oven on. The brief bake helps the crust hold together when the chilled pie is sliced.
In a medium bowl, whisk the egg yolks for about 1 minute, until slightly thickened. Whisk in the sweetened condensed milk, Key lime juice, and lime zest until smooth. Avoid prolonged vigorous whisking, which can create extra bubbles on the surface.
Pour the filling into the warm crust and smooth the top. Bake for 10 minutes. The filling should look set around the edges and may still have a slight wobble in the center. Because this pie contains eggs, bake the egg filling to 160°F (71°C), the USDA FSIS safe minimum for egg dishes, checking the center with a food thermometer without touching the crust.
Cool the pie on a rack for about 45 minutes, then cover it without letting the covering touch the surface and refrigerate for at least 4 hours, until cold and firm. Do not leave it at room temperature for more than 2 hours total.
Just before serving, whip the cold heavy cream with the powdered sugar and vanilla until it holds soft-to-medium peaks. Spoon or pipe it over the chilled pie, and garnish with lime zest or thin lime slices if you like. Slice with a clean knife, wiping it between cuts for neat portions.

Tips

Choose the juice for the flavor you want. Key limes are small and aromatic, but squeezing enough can be tedious. Bottled Key lime juice is convenient; regular Persian lime juice works in the same amount, though its flavor is usually less floral and more familiar.
Measure the crust crumbs after crushing. The recipe uses 1 ½ cups of crumbs, not whole-cracker volume. Pressing the crumbs firmly helps prevent a loose crust, but avoid making the sides unusually thick or they may bake unevenly.
Watch the filling, not just the clock. Ovens and pie plates vary. A center that quivers slightly is fine, but the required safe internal temperature for the egg filling is 160°F (71°C). The pie will firm further as it chills.
Keep the topping separate until serving. Whipped cream looks and holds its texture best when added shortly before serving. For easier slices, chill the pie thoroughly and use a sharp knife warmed in hot water and dried between cuts.

Serving Suggestions

Serve the pie cold in modest wedges; the filling is rich, sweet, and tart. Add a dollop or piped rosette of unsweetened or lightly sweetened whipped cream, then finish with a pinch of lime zest. For a simple dessert plate, pair each slice with fresh berries or a few extra graham cracker crumbs. Avoid leaving slices out during a long meal: return the pie to the refrigerator within 2 hours.

Variations

Use regular limes: Substitute Persian lime juice and zest in equal quantities. The result is still a lime pie, with a slightly different citrus aroma.
Make a thicker crust: Increase the graham cracker crumbs to 1 ¾ cups (175 g) and butter to 6 tablespoons (85 g); keep the sugar at 3 tablespoons (38 g). Press firmly and bake as directed.
Skip the homemade topping: Serve plain, or add ready-made whipped topping at the table. Keep any topping refrigerated according to its package directions.
Try a different crumb crust: Finely crushed digestive biscuits can replace the graham crackers by weight. Their flavor is a little less honeyed, so the finished pie will taste slightly different.

Storage and Reheating

Refrigerate the pie, covered, within 2 hours of baking or serving. It keeps for about 3 to 4 days in the refrigerator; for the best crust texture, store the whipped cream separately and add it just before serving. This custard-style pie is served chilled, so reheating is not recommended. To freeze, wrap the fully chilled pie tightly and freeze for up to 1 month for best quality. Thaw it overnight in the refrigerator, not on the counter; the crust may soften slightly. Freeze without whipped cream, then garnish after thawing.

Frequently Asked Questions

Is this the exact Edwards pie recipe?
This is a homemade, Edwards-inspired recipe, not a verified commercial formula. It recreates the familiar combination of tart lime filling, graham cracker crust, and creamy topping using standard home-baking ingredients.

Can I use regular lime juice instead of Key lime juice?
Yes. Use ½ cup (120 ml) regular lime juice. The pie will still set, though Key lime juice has a distinctive fragrance and a slightly different flavor. Bottled Key lime juice is a practical option when fresh Key limes are unavailable.

Why is my pie filling runny?
It may not have reached the required baking temperature, or it may not have chilled long enough. Check the center with a food thermometer for 160°F (71°C), then refrigerate for at least 4 hours. A warm pie will not slice as cleanly as a thoroughly chilled one.

Can I make the pie ahead?
Yes. Bake and chill it a day ahead, keep it covered in the refrigerator, and add whipped cream close to serving. This gives the filling plenty of time to firm and makes serving easier.

Do I need to bake the crust first?
Yes, for this recipe. An 8-minute bake helps the butter-bound crumb crust set and keeps it from crumbling as readily when cut. Let it stand briefly while mixing the filling, then fill and bake again.

Can I leave out the lime zest?
Yes. The pie will still have lime flavor from the juice, but zest adds a brighter citrus aroma. If using it, grate only the colored outer peel; the white pith underneath can taste bitter.

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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes

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