1-First Step: Prepare the Meringue Crust
Begin by separating your eggs: chill them first for easier separation, then let the whites reach room temperature for better whipping. In a clean, chilled bowl, beat the 4 egg whites until they turn foamy this step sets the foundation for a light crust. Gradually add 1 cup granulated sugar and 1/4 teaspoon cream of tartar, beating until the mixture is glossy and forms stiff peaks, which usually takes about 5-7 minutes.
Once ready, butter a 9-inch pie plate to prevent sticking. Spread the meringue evenly over the bottom and up the sides of the plate. Bake it at 300°F (150°C) for 45-60 minutes until it feels dry to the touch. If your kitchen is humid, the peaks might not form perfectly, but that’s okay just proceed and bake as directed.

2-Second Step: Make the Lemon Filling
While the crust bakes, focus on the filling to save time. In a microwave-safe bowl, combine 4 egg yolks, 1/2 cup granulated sugar, 3 tablespoons lemon juice, 1 tablespoon grated lemon rind, and 1/4 teaspoon salt. Stir everything together until well mixed, which should take about a minute.
Microwave the mixture in 30-second intervals, stirring after each, for a total of 4 minutes or until it thickens to a custard-like consistency. Let it cool completely on the counter or in the fridge. This step adds the bright lemon flavor that makes the pie special and can be adapted by using lime juice for a twist if you prefer.

3-Third Step: Whip and Assemble the Pie
With the crust cooling and the filling ready, whip 2 cups of heavy whipping cream until soft peaks form, which takes around 2-3 minutes with an electric mixer. Fold half of this whipped cream into the cooled lemon mixture gently to keep it airy.
Now, fill the cooled meringue crust with the lemon-cream blend, spreading it evenly. Top it off with the remaining whipped cream for a beautiful finish. If you’re making this for a crowd, consider doubling the cream for extra topping.

4-Fourth Step: Chill and Serve
Place the assembled pie in the refrigerator and let it chill overnight, about 8-12 hours, to allow the flavors to blend and the crust to soften just right. This resting time is crucial for the best texture, so plan ahead if you’re serving it for an event.
For serving, slice the pie with a sharp knife and enjoy it cold. If you need to adapt for dietary preferences, like using a non-dairy cream, this is the step where it really shines without changing the core recipe. The total time, including chilling, is about 1 hour 20 minutes plus overnight, making it ideal for busy schedules.