Lemon meringue pie is a blind-baked pastry shell filled with a thick, sharp lemon curd and topped with soft, toasted meringue. It takes about two hours start to finish, and the result is a pie that looks genuinely impressive without requiring any special equipment. The main reason to make this one from scratch is the filling — fresh lemon juice and zest give it a brightness that no boxed mix comes close to.
About the ingredients
- Cornstarch: This is what sets the lemon filling firm enough to slice cleanly. Don’t substitute flour — it won’t give you the same clean, glossy curd.
- Superfine sugar for the meringue: The recipe calls for superfine (caster) sugar, and it genuinely matters. Regular granulated sugar can leave the meringue slightly grainy or weepy. If you only have regular sugar, pulse it in a food processor for 30 seconds.
- Fresh lemon juice: Bottled lemon juice will work in a pinch, but the zest is what carries most of the bright flavor — skip the bottled stuff and use fresh lemons so you can zest them too.
- Cold butter in the filling: Adding cold butter at the end of cooking gives the curd a smoother, slightly richer texture. Don’t swap in salted butter; it throws off the sweet-tart balance.
- Pie crust: Store-bought works fine here. Skip the garnish — not worth the extra dish — and let the meringue do the visual work.
Before you start
Two things will make or break this pie. First, the lemon filling must be genuinely thick before it goes into the shell — if it’s still loose or pourable when you take it off the heat, put it back and keep stirring. A filling that’s too thin will never set up properly once baked, and you’ll end up with a runny slice. Second, spread the meringue while the filling is still hot. This is not optional. The heat from the curd begins to cook the underside of the meringue, which helps it bond to the filling and dramatically reduces the chance of the two layers separating into that watery gap that ruins an otherwise good pie.
Common problems and fixes
- Weeping meringue (liquid pooling under the topping): This usually means the meringue was spread over a filling that had already cooled. Always add meringue to hot filling. Undissolved sugar can also cause weeping — beat until you can rub a small amount between your fingers and feel no graininess.
- Filling that won’t slice cleanly: The curd wasn’t cooked long enough to fully activate the cornstarch. Next time, hold the mixture at a gentle boil for the full two minutes after adding the yolks — even if it looks thick, the starch needs that time to set.
- Meringue shrinking away from the crust edges: This happens when the meringue isn’t sealed all the way to the pastry. Use the back of a spoon to press it firmly against the crust edge all the way around before baking.
- Soggy crust bottom: The shell wasn’t fully blind-baked before filling. It should be golden and dry to the touch — not just set — before you pour in the lemon curd.
- Meringue browning unevenly: Hot spots in your oven. Rotate the pie halfway through the 12–15 minute bake and keep a close eye after the 10-minute mark.
Storage and freezing
Lemon meringue pie keeps in the refrigerator for up to 3 days. Cover it loosely with a large inverted bowl rather than plastic wrap — wrap pressed against the meringue will pull it apart when you remove it. If you’re making this ahead for gifting or an event, the lemon filling can be made up to 2 days in advance and stored in an airtight container in the fridge; reheat it gently before pouring into the shell and adding the meringue. Freezing the fully assembled pie is not recommended — the meringue turns rubbery and weeps badly on thawing. If you need to freeze something, freeze the baked, unfilled shell and make the curd and meringue fresh. When transporting or packaging a finished pie, keep it cold and upright; the meringue is stable once fully baked and chilled, but it won’t survive being jostled in a warm car.
Lemon Meringue Pie
Equipment
- 9-inch pie dish
- Mixing Bowls
- Whisk
- Saucepan
- Rolling pin
- Oven
- wire rack
Ingredients
For the Pie Crust:
- 1 piece 9-inch pie crust homemade or store-bought
For the Lemon Filling:
- 1 ¼ cups granulated sugar preferably organic
- ¼ cup cornstarch
- 1 ½ cups water room temperature
- 3 large egg yolks at room temperature
- ½ cup fresh lemon juice about 2-3 lemons
- 1 tablespoon grated lemon zest
- 2 tablespoons unsalted butter cold
For the Meringue Topping:
- 4 large egg whites at room temperature
- 6 tablespoons granulated sugar preferably superfine
Instructions
- Preheat your oven to 350°F (175°C). Blind bake the pie crust in a 9-inch pie dish according to the package instructions if store-bought, or using your preferred method for homemade crust. Let it cool on a wire rack.
- In a saucepan, whisk together 1 1/4 cups of granulated sugar and 1/4 cup of cornstarch. Gradually stir in 1 1/2 cups of water, ensuring there are no lumps.
- Cook the mixture over medium heat, stirring constantly until it becomes thick and bubbly. Continue to cook and stir for 2 more minutes, then remove from heat.
- Whisk the 3 egg yolks slightly in a small bowl. Gradually add in 1/2 cup of the hot sugar mixture while constantly whisking the yolks to temper them. Return the yolk mixture to the saucepan and bring it to a gentle boil. Cook and stir for an additional 2 minutes. Remove from heat and stir in the lemon juice, lemon zest, and butter until smooth and the butter is melted.
- Pour the lemon filling into the baked pastry shell.
- To make the meringue, beat 4 egg whites in a mixing bowl on medium speed until soft peaks form. Gradually add 6 tablespoons of granulated sugar, 1 tablespoon at a time, beating on high until stiff, glossy peaks form and sugar is dissolved.
- Spread the meringue over the hot lemon filling, sealing the edges to the crust to prevent shrinkage. Bake the pie at 350°F (175°C) for 12 to 15 minutes or until meringue is golden brown.
- Cool the pie on a wire rack for at least 1 hour before serving. For optimal texture, refrigerate for an additional hour.
Notes
- For a twist, consider adding a hint of lavender to the lemon filling for a floral note.
- If desired, substitute cornstarch with arrowroot powder for a slightly different texture.
Nutrition
FAQ
Can I make lemon meringue pie the day before serving?
Yes, but it’s best assembled no more than 24 hours ahead. The meringue holds reasonably well overnight in the fridge, but by day two it starts to weep and soften, so same-day or next-day is the window.
Why does my meringue slide off the filling when I cut the pie?
The meringue wasn’t sealed to the crust edges, or it was applied to a cooled filling. Spreading meringue onto hot curd and pressing it firmly against the pastry rim on all sides are the two steps that keep it anchored.
Can I use a store-bought graham cracker crust instead of a pastry shell?
You can, though the filling and meringue are baked at 350°F, which can over-brown a graham crust quickly. If you go that route, check the crust edges at the 10-minute mark and tent them with foil if needed.
How do I know when the meringue is done baking?
The peaks should be golden brown and the meringue should feel set — not sticky — when you gently touch a low spot. Pale meringue that looks dry on top can still be undercooked underneath, so don’t pull it early.
My lemon filling tastes more sweet than tart. What went wrong?
The most common cause is lemon juice that was too mild — this happens with older lemons or ones that were refrigerated for a long time. For a sharper result, add an extra teaspoon of zest, which carries more concentrated citrus flavor than additional juice.
More sweet things to bake
- Zesty Key Lime Pie
- Tropical Bliss Toasted Coconut Custard Pie
- Mediterranean Sunshine Lemon Crumble Bars
- Zesty Lemon Thyme Shortbread Bars