Key Lime Pie(The Best) - cooking recipe

Ingredients

1 (9-inch) pie shell
1 envelope unflavored gelatin
1 c. sugar
1/4 tsp. salt
1/2 c. lime juice
4 eggs, separated
lime rind, grated (from one lime)
few drops of green food coloring
lime rind for garnish (optional)

Preparation

Mix in a saucepan the 1/2 cup sugar, gelatin, lime juice, salt and 1/2 cup water.
Heat until gelatin melts.
Beat egg yolks. Add hot mixture a little at a time so that the mixture doesn't curdle.
Cook over low heat and stir for 2 to 3 minutes.
Remove from heat and add the rind.
Chill until cool but not set.