In a medium saucepan, combine 1 ½ cups sugar, cornstarch, and salt. Stir in eggs, water, butter, and lemon zest. Cook over medium heat, stirring constantly, until mixture thickens and boils. Boil and stir for 1 minute; remove from heat.
Pour hot filling into pie crust.
In a medium bowl, beat egg whites until foamy. Gradually add 1/3 cup sugar, beating until stiff peaks form. Spread meringue over filling, sealing edges to crust.
Bake in preheated oven for 12 minutes, or until meringue is golden brown. Cool before serving.
Sprinkle with sweetened coconut flakes before serving.
Interesting Facts
The French name for meringue is “douce meringue” which means sweet meringue.
Lemon meringue pie is thought to have originated in the mid-19th century in the United States.
Lemon meringue pie is a popular dessert in the United Kingdom.
Lemon meringue pie has been featured in a number of movies and television shows.