Preheat your 5- or 6-quart air fryer to 340°F for 3 minutes.
Cover the frozen pie crust with foil and weigh it down with two metal spoons.
Carefully pull out the air-fryer pan and basket, then place the crust in the basket.
Slide the pan and basket back into the appliance.
Keep the temperature set at 340°F and set the timer for 10 minutes.
Cook until the pastry is lightly golden and dry.
Transfer the cooked pastry base to a board to cool.
While the pastry is cooling, make the chocolate chip cookie filling.
Beat the butter, brown sugar, egg, and vanilla in a small bowl with an electric mixer for 6 minutes or until light and creamy.
Stir in sifted flour and salt, then fold in the chocolate chips.
Fill the pastry case with the filling and smooth the surface.
Press assorted chocolates into the top of the pie.
Place the pie in the basket, cover it with foil.
Reset the temperature to 325°F and set the timer for 30 minutes.
Cook until a skewer inserted into the center of the pie comes out with a few crumbs attached, and the top is browned and puffed.
Dust the pie with confectioners' sugar and serve it warm or cool.
Notes / Tips / Wine Advice:
Serve the pie with scoops of vanilla ice cream.
You can make your own self-rising flour. For each cup of self-rising flour called for in a recipe, use 1 cup all-purpose flour plus 1.5 teaspoons baking powder and 1/4 teaspoon fine salt