
1 cup sugar and 1 1/2 cups boiling water.
Let come to a boil add 3 tablespoon corn starch to 1/2 cup water and dissolve, stir into boiling sugar and water, boil until clear.
Add 2 tablespoons butter, yolks of 3 eggs beaten a little, 3 tablespoons vinegar, 1 teaspoon lemon extract, pinch of salt.
Stir into the cornstarch mixture, but do not boil.
Pour into unbaked pie shell, bake in rather slow oven.
Beat whites of 3 eggs until stiff add 9 tablespoons sugar, spread on baked pie, return to the oven until golden brown.