This is the one I make. I top it with whipped cream, not meringue but I'll include the meringue recipe:
OLD-FASHIONED CHOCOLATE MERINGUE PIE
1 1/4 cups + 6 TBL sugar
1/2 cup cocoa powder
1/3 cup cornstarch
1/4 tsp salt
3 cups milk
3 eggs, separated
3 TBL butter
1 1/2 tsp vanilla
1 baked 9" pastry shell
1/4 tsp cream of tartar

Combine 1 1/4 cups sugar into the cocoa powder, cornstarch & salt in a heavy saucepan. Whisk to remove any lumps. Gradually whisk in the milk. Cook over medium ehat, stirring constantly, until the mixture thickens & comes to a boil Boil 1 minute; remove from the heat. Beat the yolks until thick & lemon colored. Stir 1/4 of the hot mixture into the yolks; add the yolks to the remaining hot mixutre stirring constantly. Cook over medium heat 2 minutes. Remove from the heat & stir in the butter & vanilla. Pour into the pastry shell.
Preheat oven to 400°. Combine the egg whites & cream of tartar. Beat until foamy. Gradually add the remaining 6 TBL sugar, 1 TBL at a time, beating until stiff peaks form. Spread over the filling, sealing to the edge of the pastry. Bake 8 minutes or until lightly browned. Cool before serving.~~Wild, Wild West

Thanks Ginger, that's exactly what I want. You are always right on top of everything. Thank you very, very much.
Dee in Michigan.

You're most welcome. Hope you like it.