Ingredients:

Instructions:

  1. Phase 1: Crafting the Custard. In a medium bowl, whisk together the sugar, cornstarch, and salt until combined. Whisk in the 6 egg yolks until the mixture is pale yellow and thick.
  2. Heat the milk in a medium saucepan over medium heat until steaming, but not boiling.
  3. Temper the yolks: Slowly drizzle about 1 cup of the hot milk into the yolk mixture while constantly whisking to raise their temperature gradually.
  4. Pour the tempered yolk mixture back into the saucepan with the remaining milk. Whisk constantly over medium heat until the mixture thickens considerably and coats the back of a spoon (about 5-8 minutes). Do not allow it to boil rapidly.
  5. Remove from heat. Whisk in the butter pieces until fully melted and smooth. Stir in the vanilla extract.
  6. Cool the custard: Press plastic wrap directly onto the surface of the custard to prevent a skin from forming. Let it cool slightly for about 20 minutes.
  7. Phase 2: Assembly & Setting. Prepare the assembly components: slice the bananas into 1/4-inch thick pieces and have the vanilla wafers ready. Preheat oven to 350°F (175°C) if using the meringue topping.
  8. Begin layering in a 9x13 inch dish: Spread a thin base layer of custard. Follow with a single layer of vanilla wafers, then a layer of sliced bananas. Pour about one-third of the remaining custard over this layer.
  9. Repeat the layering sequence (wafers, bananas, custard) two more times, finishing the top with the last of the custard.
  10. Chill: Cover the dish tightly and refrigerate for a minimum of 4 hours, or preferably overnight, to allow the wafers to soften.
  11. Phase 3: The Meringue Finish (Optional). If using, make the meringue: Beat the 4 egg whites with the cream of tartar until soft peaks form. Gradually add the 1/2 cup of sugar, beating until stiff, glossy peaks form.
  12. Spread the meringue evenly over the deeply chilled pudding surface. Bake at 350°F (175°C) for 10-15 minutes until the tips are lightly golden brown, or use a kitchen torch for immediate browning.
  13. Cool the topping slightly and serve. Remember that constant whisking during custard cooking is crucial for a silky texture.