Sprinkle gelatin over cold water in a medium bowl. Let stand 5 minutes, allow to soften.
Add boiling water, stirring, until gelatin dissolves. Stir in sugar, coconut milk.
Let cool slightly, refrigerate 25 minutes or until lightly set. Place mixture in food processor
. Process until smooth (about 30 seconds).
Remove to a bowl.
In a separate bowl, beat egg whites until stiff peaks. Fold into gelatin mixture.
Pour into 8x8 (single recipe) or 9x13 (tripled) pan. Sprinkle coconut on top. Refrigerate 3 h or until firm.