1 c. heavy cream
1 pkg. plain gelatin
1/4 c. water
1 (8 oz.) container Cool Whip
3 to 5 heaping tbsp. cocoa
1/2 c. sugar

Soften gelatin in 1/4 cup water. Whip cream. Fold Cool Whip, gelatin, cocoa and sugar into whipped cream. Spoon into baked deep dish pie shell. Shave semi-sweet chocolate chips over top. Let set 4 to 6 hours or overnight, until firm.