1 pkg. lime Jello
1 c. boiling water
3 eggs, separated
1/4 c. sugar
1 (9 inch) graham cracker pie crust

Dissolve Jello in boiling water. Beat egg yolks until light. Stirring slowly, add egg yolks to Jello. Chill until slightly thickened. Beat egg whites until stiff, gradually adding sugar. Fold slightly thickened Jello into egg whites and pile into pie crust. Chill until firm. Garnish with whipped topping, if desired.