Here is a detailed breakdown of the steps involved in creating your own delectable old-fashioned lemon meringue pie:

1. Prepare the filling:
   • In a saucepan, combine the white sugar, all-purpose flour, cornstarch, and salt.
   • Gradually add water, lemon juice, and lemon zest to the saucepan, stirring well.
   • Bring the mixture to a boil over medium heat, stirring continuously.
   • Add butter to the saucepan, stirring until melted.
   • In a separate bowl, place the beaten egg yolks. Take a small amount of the hot sugar mixture and whisk it into the egg yolks, then gradually whisk this mixture back into the saucepan.
   • Continue cooking the filling, stirring constantly until it thickens. Remove from heat and set aside.
2. Prepare the meringue:
   • In a clean mixing bowl, beat the egg whites until they become foamy.
   • Gradually add the white sugar while continuing to beat the egg whites.
   • Beat the mixture until stiff peaks form, ensuring the sugar is fully incorporated.
3. Assemble and bake the pie:
   • Preheat your oven to a specified temperature according to your recipe.
   • Pour the prepared lemon filling into a pre-baked pie shell.
   • Spread the meringue over the filling, ensuring it touches the crust edges to seal in the filling completely.
   • Use a spatula or the back of a spoon to create peaks and swirls on the meringue for an attractive appearance.
   • Place the pie in the preheated oven and bake until the meringue turns golden brown.

These steps outline the basic process, but it’s important to consult a specific lemon meringue pie recipe for precise measurements and oven temperatures. Enjoy the delightful journey of making and savoring your homemade lemon meringue pie!