4 eggs, separated
1/2 c. lime juice
1 can (13 oz.) sweetened condensed milk
Green food coloring (optional)
9 inch pie shell, baked
1/2 tsp. cream of tartar
1/3 c. sugar

Beat egg yolks until light and thick. Blend in lime juice, then milk, stirring until mixture thickens. If desired, add a few drops of green food coloring. Pour mixture into baked pie shell.

Beat egg whites with cream of tartar until stiff. Gradually beat in sugar, beating until glossy peaks form. Spread egg whites over surface of pie to edge of crust. Bake in 350 degree oven until golden brown, about 20 minutes. Chill before serving. Serves 8-10.