Step 1: Prepare the Crust Preheat your oven to 325°F (163°C).
In a mixing bowl, combine the vanilla wafer crumbs, granulated sugar, and melted butter. Stir until the crumbs are evenly coated.
Press the mixture into the bottom of a 9-inch springform pan to form an even crust.
Bake for 10 minutes, then remove from the oven and allow it to cool while you prepare the cheesecake filling.

Step 2: Make the Cheesecake Filling In a large mixing bowl, beat the softened cream cheese with a hand mixer or stand mixer until smooth and creamy.
Add the sugar and vanilla extract, then mix until fully combined.
Add the eggs one at a time, mixing well after each addition.
Stir in the sour cream and heavy cream until smooth and creamy.
Pour the cheesecake filling into the cooled crust, smoothing the top with a spatula.
Bake at 325°F (163°C) for 50-60 minutes or until the center is set but still slightly jiggly.
Turn off the oven and let the cheesecake cool in the oven with the door slightly ajar for 1 hour. Then remove from the oven and cool to room temperature. Refrigerate for at least 4 hours or overnight to fully set.

Step 3: Prepare the Banana Pudding Layer In a medium saucepan, whisk together the whole milk and banana pudding mix. Bring to a simmer over medium heat, stirring constantly. Once thickened, remove from the heat and let it cool slightly.
In a separate bowl, whip the heavy cream and powdered sugar until soft peaks form.
Gently fold the whipped cream into the cooled banana pudding mixture until smooth.

Step 4: Assemble the Cheesecake Once the cheesecake has set, carefully spread the banana pudding layer over the top of the cheesecake. Arrange the sliced bananas over the pudding layer.

Step 5: Add the Toppings Top the cheesecake with whipped cream, spreading it evenly over the banana pudding.
Sprinkle crushed vanilla wafers on top for garnish and add a few more banana slices for decoration.

Step 6: Serve Chill the cheesecake for an additional 1-2 hours before slicing and serving to ensure the layers hold together.
Cut into slices and enjoy the creamy, banana-flavored goodness!