My favorite part of Magic Lemon Meringue Pie is the contrast between a crisp baked crust, a bright lemon filling, and a soft meringue top. The sweet-tart filling is cooked on the stove before the pie goes into the oven for its golden finish.

This version uses flour and cornstarch to thicken the filling, with egg yolks for richness and the whites saved for the topping. Keep the two sugar amounts separate: 1 cup goes into the lemon filling and 1/2 cup goes into the meringue.

Give yourself plenty of cooling time so the slices hold their shape. It is a lovely make-early dessert for dinner; if you want a simpler lemon bake for another day, try the lemon blueberry loaf cake.

Before You Start

Have the 9-inch crust fully baked and cooled before you cook the filling. The ingredient list calls for a baked crust, so do not put the lemon mixture into raw pastry. Follow the crust recipe or package for blind-baking, as the time and temperature depend on the pastry you use.

Wash and dry the lemons, zest the yellow skin first, then squeeze and strain the juice. Avoid grating the bitter white pith. Lemon size varies, so the finished tartness may vary too; this recipe keeps the juice and zest of 2 lemons as listed.

Separate the eggs carefully, keeping every bit of yolk out of the whites. Get the bowl, beaters, and meringue sugar ready before heating the filling so you can work without a long pause.

Kitchen Equipment You Will Need

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• Mixing bowl
• Measuring set
• Saucepan
• Hand mixer
• Food thermometer

Preparation Tips

Use a mixing bowl for whipping the egg whites; it needs to be completely grease-free. A measuring set helps portion the sugar and thickeners accurately. Choose a saucepan with a heavy base to heat the filling evenly.

Use a hand mixer to beat a smooth, glossy meringue and a food thermometer to check both the egg filling and the meringue.

Magic Lemon Meringue Pie Ingredients

For the lemon filling:

• 1 cup granulated sugar
• 2 tablespoons all-purpose flour
• 3 tablespoons cornstarch
• ¼ teaspoon salt
• 1 ½ cups water
• Juice and zest of 2 lemons
• 2 tablespoons unsalted butter
• 4 egg yolks, beaten
• 1 (9-inch) pie crust, baked

For the meringue topping:

• 4 egg whites
• ½ cup granulated sugar

How to Make Magic Lemon Meringue Pie

Prepare the crust and lemon filling:

Start with the listed 9-inch pie crust already fully baked and cooled. If yours is unbaked, bake it first according to its recipe or package directions. Heat the oven to 350°F (175°C). Set out the mixer and measure the meringue sugar before cooking the filling. In a medium saucepan, whisk together the 1 cup sugar, flour, cornstarch, and salt; gradually whisk in the water until smooth.

Cook over medium heat, stirring constantly and reaching into the corners of the pan, until the mixture thickens and begins bubbling. Let it bubble gently for 1 minute while stirring.

Remove the pan from the heat and stir in the juice and zest of the 2 lemons and the butter until blended.

Slowly whisk about 1/2 cup of the hot filling into the beaten egg yolks. Pour this mixture back into the saucepan while whisking. Return to medium-low heat and cook, stirring constantly, until gently bubbling; continue for 2 minutes. Check that the filling reaches at least 160°F (71°C), then remove from the heat.

Keep the filling hot:

Cover the saucepan off the heat while you make the meringue right away. The filling needs to be hot when you add the topping. If it cools, gently reheat it while stirring before assembling.

Prepare the meringue topping:

Use a clean, dry, grease-free mixing bowl and beaters. Beat the 4 egg whites on medium speed until soft peaks form. Add the 1/2 cup sugar gradually, 1 tablespoon at a time, beating well after each addition. Continue beating until the peaks stand up and the meringue is glossy. A little rubbed between clean fingers should feel smooth rather than gritty; wash your hands after checking.

Assemble the pie:

Pour the hot lemon filling into the fully baked pie crust and spread it evenly. Add the meringue immediately so the filling stays hot.

Add the meringue topping:

Spoon the meringue around the edge first, pressing it gently against the crust all the way around. Cover the center and spread into an even layer, leaving a few soft swirls on top.

Bake the pie:

Bake at 350°F (175°C) for about 20 to 25 minutes, until the meringue is lightly golden and its center reaches 160°F (71°C) on a food thermometer. Insert the probe into the thickest part of the meringue without touching the hot filling. Check the temperature rather than relying on color alone; ovens and topping thickness can change the time.

Cool, chill, and serve:

Cool on a rack for about 1 hour, then refrigerate for at least 4 hours, until the filling is cold and set. Put the pie in the refrigerator within 2 hours of baking, or within 1 hour if the room is above 90°F (32°C). Once chilled, cover loosely without pressing on the meringue. Slice with a clean knife, wiping it between cuts, and keep leftovers refrigerated.

Tips for a Smooth Filling and Fluffy Topping

Stir right to the edges. Thickened filling can catch on the bottom of the pan. Use a whisk to keep it moving, then scrape the corners with a heat-safe spatula as needed.

Add the hot filling to the yolks slowly. Whisking in a little at a time warms them gently. Pouring it all in at once can leave cooked egg pieces in the filling.

Let each spoonful of sugar dissolve. Rushing the meringue can leave it gritty. Stop beating once it is glossy and holds its shape; dry, clumpy whites are harder to spread.

Put the topping on hot filling. The American Egg Board explains that hot filling helps cook the underside of the meringue and reduces the slippery layer that can form beneath it. Sealing the topping to the crust also helps limit shrinking.

Use the temperature check. A golden surface does not tell you whether the inside is cooked. The filling and the thickest part of the meringue should each reach 160°F (71°C).

Cooling, Serving, and Storage

With a ready baked crust, allow about 30 minutes for preparation, 35 minutes for cooking, and 5 hours for cooling and chilling, about 6 hours 5 minutes altogether. These are planning estimates. The crust needs extra time if you are baking it from raw, and the filling should be fully set before slicing.

Serve the pie cold, on its own or with a few fresh berries. A small slice of cherry pie makes a fruitier second option on a dessert table. For another citrus dessert, save the key lime pie recipe for your next gathering.

Keep the pie at 40°F (4°C) or below. Refrigerate within 2 hours, or 1 hour above 90°F (32°C), and use refrigerated leftovers within 3 to 4 days. The meringue and crust are best the day the pie is made and may soften during storage.

Frequently Asked Questions

Why is my lemon filling runny?

It may not have cooked long enough to thicken, or the pie may have been sliced before it was cold. Let the filling reach a gentle bubble as directed, then give the finished pie its full chilling time. Do not add extra water or lemon juice to this batch.

Why is there liquid under the meringue?

Weeping can happen when the filling is too cool, the meringue is undercooked, or the pie sits for a long time. Spread the topping promptly over hot filling, seal it to the crust, and check its center temperature. A little moisture can still develop as the pie is stored.

Can I make it the day before?

Yes, if you cool and refrigerate it promptly, but the topping may release moisture and the crust may soften overnight. For the neatest slices, make it early on the day you plan to serve it and leave enough time for chilling.

Can I freeze this pie?

Freezing is not the best choice for the finished pie. The soft meringue can lose volume and release liquid after thawing. For this recipe, plan to refrigerate it and enjoy it within a few days.

Do I need cream of tartar?

It is not part of this recipe. Work with clean, grease-free equipment, add the sugar slowly, and use the meringue right away. Adding a new stabilizer would be a separate variation.