From Million Dollar Baby movies, a fantastic old fashioned lemon meringue pie!

Filling:
1 1/4 cups sugar – 1/3 cup cornstarch
1 1/2 cups hot water – 3 egg yolks, slightly beaten
1/2 cup strained fresh lemon juice – 4 tablespoons lemon rind, gratedCombine sugar, cornstarch in a pan and gradually stir in water. Cook over moderate heat until mixture boils 1 minute, stirring constantly. Beat a little of the hot mixture into the egg yolks, then beat them into hot mixture in saucepan.
Boil 1 more minute, stirring constantly. Remove from heat, Blend in the butter, juice, and rind. Pour into baked pie shell and cover with meringue while still hot.

Meringue:
3 egg whites – 1/4 teaspoon cream of tartar
6 tablespoons sugar – 1/2 teaspoon vanilla
In a clean glass or metal, bowl beat the egg whites on medium speed until foamy. Add the cream of tartar and beat until soft peaks form
Beat in the sugar until the peaks are stiff and glossy. Beat in the vanilla. Bake in a preheated oven at 325 degrees for 20 min. Let cool on a rack and then refrigerate.

Recipe by => https://www.mangiamagna.com/