1 baked 9-inch pie shell
1/3 c. cornstarch
1 1/2 c. sugar
1/4 tsp. salt
1 1/2 c. water
3 egg yolks, beaten
1/4 c. fresh lime juice
1 tbsp. grated lime peel
2 drops green food color
Meringue from 3 egg whites

Combine cornstarch, sugar and salt in saucepan; gradually add water, stirring until smooth. Bring to a boil over medium heat stirring constantly, and boil 1 minute. Remove from heat and quickly add one-half the hot mixture to the egg yolks, mixing well. Return to the hot mixture, blending thoroughly. Bring the mixture to a boil, stirring, over medium heat. Boil 1 minute longer. Remove from heat; stir in lime juice and peel, add food coloring to make filling a delicate green. Pour into cool pie shell at once. Completely cover with meringue you made from the egg whites. Bake in moderate oven (350 degrees) twelve to fifteen minutes or until meringue is golden. Cool on wire rack away from drafts.