Ingredients

  • 1 (9 inch) pastry for single-crust pie (baked and cooled)
  • 1 12 teaspoons unflavored gelatin
  • 1 14 cups cold nonfat milk, divided
  • 23 cup sugar
  • 14 cup cornstarch
  • 14 cup baking cocoa
  • 3 egg yolks
  • 3 tablespoons butter
  • 2 teaspoons vanilla extract
  • 1 12 cups whipped topping
  • chocolate curls (optional)

Method

  • In a small heavy saucepan, sprinkle gelatin over 1 cup milk; let stand for 1 minute.
  • Cook over medium-low heat until bubbles form around sides of pan.
  • Meanwhile, sift the sugar, cornstarch and cocoa into a small bowl.
  • Combine egg yolks and remaining milk; whisk into sugar mixture until blended.
  • Add a small amount of hot milk mixture to sugar mixture; return all to saucepan, whisking constantly.
  • Whisk vigorously over medium heat as mixture begins to thicken (mixture will become very thick).
  • Bring to a boil; whisk 2 minutes longer.
  • Remove from the heat; whisk in butter and vanilla.
  • Transfer to a large metal mixing bowl.
  • Lightly coat waxed paper with nonstick cooking spray; press onto surface of cocoa mixture.
  • Refrigerate for 45-60 minutes or until mixture reaches 80 degrees.
  • Beat the cocoa mixture on high speed for 3-4 minutes or until smooth and glossy, scraping sides of bowl occasionally.
  • Fold in whipped topping until blended well.
  • Spread evenly into crust.
  • Refrigerate for 2 hours.
  • Garnish with chocolate curls, if desired.
  • Cover leftovers tightly with foil; store in refrigerator.