1 small box cook and serve chocolate Jell-O pudding mix
1/2 c. sugar (scant)
1 tbsp. cocoa
2 c. milk
1 egg

Beat egg well; add a couple of tablespoons of mixture to egg; mix well. Cook, stirring constantly until mixture comes to boil (Will curdle as thickens; just beat until smooth). Pour into graham cracker crust. Cool. When cool, top with Cool Whip. Grate unsweetened chocolate square over top. Refrigerate. Enjoy!