Lemon meringue pie is a showstopper of contrasts, a crisp pastry shell holding a silky, tart lemon curd crowned with billowy, lightly toasted meringue. The bright, puckery filling is balanced by the sweet, marshmallowy topping, making each bite a play of textures and flavors. The curd is thickened with cornstarch and egg yolks for a glossy, sliceable set, while the meringue is whipped to stiff, glossy peaks and baked until golden. Spreading the meringue onto a hot filling and sealing it to the crust edges helps prevent weeping and shrinking. It's a classic American diner dessert that rewards careful technique with stunning results.
Serves 8
In a saucepan, whisk together 1.25 cups sugar, cornstarch, and water. Cook over medium heat, whisking constantly, until thickened and bubbling, about 5 minutes.
Constant whisking prevents the cornstarch from clumping.
Whisk a ladle of the hot mixture into the egg yolks to warm them, then whisk the yolks back into the pan.
Tempering keeps the yolks from scrambling.
Cook 2 more minutes until very thick, then remove from heat and stir in the lemon juice, zest, and butter until smooth. Pour into the baked crust.
Beat the egg whites with the cream of tartar until foamy, then gradually add the 1/2 cup sugar, beating to stiff, glossy peaks.
Add the sugar slowly for a stable, glossy meringue.
Spread the meringue over the warm filling, sealing it all the way to the crust edges to prevent shrinking.
Sealing to the crust stops the meringue from pulling away.
Bake at 350F for 12-15 minutes until the meringue peaks are golden brown.
Cool the pie to room temperature, then chill at least 3 hours before slicing.
Chilling fully sets the curd for clean slices.
Spread meringue onto hot filling to prevent weeping.
Seal the meringue to the crust edges so it won't shrink.
Use fresh lemon juice for the brightest flavor.
Cook the curd until very thick so it slices cleanly.
Cut with a wet knife for neat slices.
Make it a lime meringue pie with fresh lime juice.
Add a graham cracker crust instead of pastry.
Top with a torched Swiss meringue for extra stability.
Make mini tartlets for individual servings.
Refrigerate for up to 3 days; meringue is best the first day, as it can weep over time. Store loosely covered.
Lemon-filled pastries date back centuries, but the modern lemon meringue pie emerged in the 19th century as cornstarch thickening and reliable ovens became common. It became a beloved fixture of American home baking and diner menus throughout the 20th century.
Weeping (liquid beading under the meringue) is reduced by spreading the meringue onto a hot, not cooled, filling so the underside cooks through. Sealing it to the crust edges, beating to fully dissolved sugar, and avoiding refrigeration too long also help. Cream of tartar stabilizes the whites against shrinking and seeping.
A runny filling means the cornstarch-egg base wasn't cooked long enough or didn't reach a full bubble to activate the starch. Cook it until very thick and glossy, and let the finished pie chill at least three hours so the curd sets firmly. Adding the lemon juice after cooking preserves the thickening power.
The curd and crust can be made a day ahead, but meringue is best added and baked the day you serve, since it softens and weeps over time. If you must make the whole pie ahead, store it loosely covered in the fridge for up to a day and expect some softening of the topping.
Per serving (150g / 5.3 oz) · 8 servings total
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