Step 1

Prepare the Crust: Preheat oven to 350 degrees F. Add Nilla wafers to a food processor and pulse until crumbs (or crush them in a resealable bag, with a rolling pin). Add cookie crumbs to a bowl and stir in melted butter. Use the back of a measuring cup to press mixture firmly into the bottom and up the sides of a 9'' pie plate. Bake for 10 minutes. Allow to cool completely before adding the custard filling.

Step 2

Banana Pudding: Mix egg yolks and cornstarch in a bowl until smooth. Set aside. To a large saucepan, add sugar, salt and milk to a large, heavy saucepan and whisk to combine. Cook over medium heat, stirring often, until it comes to a simmer.

Step 3

Spoon a big ladleful of simmering milk out of the pot, and very slowly whisk the milk into the egg yolk mixture, whisking constantly as you pour a slow steady stream, to temper the eggs (warm them up slowly, without scrambling them).

Step 4

Pour the tempered egg mixture into the saucepan, whisking to incorporate. Cook, stirring constantly over medium heat, until the mixture has thickened (thick enough to coat the back of a spoon).

Step 5

Remove from heat and stir in butter and vanilla extract. Strain pudding through a fine mesh sieve, into a storage container. Lay a piece of plastic wrap directly over the pudding to prevent a skin from forming. Allow to cool for 30 minutes.

Step 6

Slice bananas into the bottom of the nilla wafer crust. Pour pudding over the top. Place a small piece of plastic wrap directly on the surface of the pudding, so a skin doesn’t form. Refrigerate for at least 4-6 hours.

Step 7

Whip Cream: Add heavy cream and powdered sugar to a mixing bowl and whip until peaks form. Smooth whipped cream over the top of the pie.

Step 8

Refrigerate for at least 4-6 hours before serving.