Pineapple Pie

You may remember Dixie's CB name... "Pineapple Pie."  This is Lyle's favorite.

1/2 cup cornstarch
1 cup pineapple, crushed
1 1/2 cups sugar
3 egg yolks
3 cups boiling water
2 Tbsp. butter
pinch of salt
pie crust

Mix sugar and cornstarch into boiling water.  Cook for 15 minutes in a double boiler.  Add egg yolks; beat until smooth.  Remove from heat; add pineapple and butter.  Let cool.  Pour into pie shell.  Use egg whites for meringue.  If this is cooked in a heavy saucepan it can be done without the use of a double boiler.  The color of the mixture should be clear before the egg yolks are added.