Preheat and prepare dish. Preheat oven to 350°F (18o℃). Lightly grease a 9’’ pie dish with cooking spray.
Make the crust. Add cookies to a food processor and pulse until crumbs. Or place them in a sealable plastic bag and crush them with a rolling pin. Add cookie crumbs to a bowl and stir in melted butter and sugar. Press mixture firmly into the pie plate and up the sides. 1 ½ cups (180 g) graham cracker cookies, crushed 5 tablespoons (71 g) unsalted butter ¼ cup (50 g) granulated sugar
Bake the crust. Bake for 10 minutes. Allow to cool completely on a wire rack before adding the bananas and custard filling.
Make custard filling. Whisk together the egg yolks and sugar, salt and cornstarch together in a bowl until foamy and double in size. 6 large egg yolks ½ cup (100 g) granulated white sugar ¼ teaspoon salt ¼ cup (28 g) cornstarch
In a saucepan, heat milk over medium heat, whisking constantly, until the mixture is simmering. 2 ½ cups (600 mL) whole milk
Temper the eggs. Stir a small quantity of the hot milk mixture into the beaten egg yolks, and immediately add egg yolk mixture to the rest of the hot mixture. Return to the stove and continue to heat, until mixture bubbles and thickens. This happens quickly and be sure to whisk constantly. Once bubbling, cook for one more minute whisking constantly. Remove the mixture from the stove, and add butter and vanilla. Stir until the whole thing has a smooth consistency. If your cream has any curdled egg bits you can strain through a mesh sieve set over a bowl. Allow the mixture to cool for 15 minutes covered with plastic wrap. Do not let it cool longer as it can be too thick spread into the pie. 2 tablespoons (28 g) unsalted butter 2 teaspoons vanilla extract
Add bananas. Slice bananas into the bottom of the cooled crust. Top with pudding mixture. Allow to cool for 10 minutes, then chill for 4 hours. 2-3 bananas
Make whipped cream. When ready to serve, make the whipped cream. Using an electric mixer fitted with a whisk attachment, beat the heavy cream, confectioners’ sugar, and vanilla on medium-high speed until stiff peaks form, about 5 minutes. Spread or pipe onto the chilled pie. Garnish with more sliced bananas. Slice and serve. 1 cup (240 mL) cold heavy cream 3 tablespoons confectioners sugar 1 teaspoon vanilla extract Garnish: more sliced bananas