Lemon PIe

1 cup sugar
3 tablespoons cornstarch
1 cup boiling water
4 egg yolks, beaten slightly
2 tablespoons butter
4 tablespoons lemon juice
1/4 teaspoon salt
1 lemon rind grated
1 graham cracker crust


combine sugar and cornstarch in top of double boiler add the water slowly stirring until thick gradually add the egg yolks butter grated lemon rind lemon juice and salt stir for 1 or 2 minutes before pouring into graham cracker crust garnish top with grated lemon zest