Here is the one I use
1 1/2 C sugar
3 Tab cornstarch
3 Tab flour
dash salt
1 1/2 hot cups water
........................
3 slightlt beaten egg yolks
2 T butter or margerine
1/3 cup lemon juice
1 9 in baked pastry shell
.............................
3 egg whites for meringue
mix first 4 ingredients adding hot water slowly stiring constantly bring to a boil reduce heat and cook 3 min. remove from heat mix a little of the hot mixture in with egg yolks add to 1st mixture and bring back to boil for two more min. add butter and lemon juice mixing well. pour into pastry shell.
Meringue: 3 egg whites
1/2 tsp vanilla
1/4 tsp cream of tarter
6 Tab. sugar
beat till soft peaks form slowly adding in the sugar spread over hot pie filling bake at 350 for 12 to 15 min. Cool!!