01 -
Whisk together the half-and-half, egg yolks, sugar, cornstarch and salt together in a medium saucepan over medium-low heat. Cook the mixture, stirring constantly, about 15 minutes or so until the mixture has thickened to a pudding-like consistency.
02 -
Remove from the heat, and stir in the butter and vanilla extract, stirring until the butter melts completely.
03 -
In a 2-qt/8x8" baking dish, add the vanilla wafer cookies in an even, single layer, followed by half of the sliced bananas. Spread half of the warm pudding evenly over the banana and cookie layer. Repeat with another layer of cookies and the remaining bananas; top with the remaining pudding mixture.
04 -
Place plastic wrap directly on top of the pudding mixture to prevent a pudding "skin" from forming. Place the dish in the fridge to chill and set overnight, or at least 8 hours.
05 -
Just before serving, make your whipped cream: In the bowl of a stand mixer, whip the heavy whipping cream and confectioners' sugar together with the whisk attachment for 5-7 minutes, or until stiff peaks form.
06 -
Spread the whipped cream evenly over the banana pudding layer. Crush some remaining vanilla wafer cookies in your hands and sprinkle the crumbs over the top. Serve immediately, or store leftovers covered in the fridge.