1 env. unflavored gelatin
1/4 c. cold water
4 eggs, separated
2/3 c. sugar
1 tsp. grated lime peel
1/2 c. lime juice
1/4 tsp. salt
2-3 drops green food coloring
1/2 c. sugar
1 baked pie shell

Stir gelatin into cold water. Beat egg yolks slightly in small saucepan. Stir in 2/3 cup sugar, lime peel, lime juice and salt. Cook over medium heat, stirring constantly 6-8 minutes or until mixture is slightly thickened.

Remove from heat; add gelatin. Stir until gelatin dissolves. Mix in food color a drop at a time. Chill in refrigerator until mixture mounds slightly when dropped from a spoon, about 25-40 minutes.

Beat egg whites until frothy. Add 1/2 cup sugar gradually, beating constantly until stiff peaks form. Spread over gelatin; fold in whites. Spoon into pastry shell; chill until firm.