Prepare the instant vanilla pudding according to package directions, using 2 cups of cold milk and adding the vanilla extract. Whisk until the mixture begins to thicken.
Arrange a single layer of sliced bananas on the bottom of the graham cracker crust.
Pour half of the thickened pudding mixture evenly over the bananas in the crust.
Arrange the remaining banana slices over the pudding layer.
Top with the remaining pudding mixture, spreading it gently to cover the bananas completely.
Spread the thawed whipped topping evenly over the pudding layer to create the top layer of your pie.
Chill the pie in the refrigerator for at least 4 hours, or until the filling is firm.
Slice and serve this easy banana cream pie cold.
Notes
For a richer, from-scratch pie filling, you can substitute the instant pudding with a homemade vanilla custard base.
Use bananas that are ripe but still firm to prevent them from becoming mushy in the filling.
If you prefer a baked crust, you can use a traditional pastry crust, but this recipe focuses on the simple no-bake version.