Preheat oven to 350°F/180°C. Prep 9" x 13" baking pan with nonstick baking spray. Line the baking pan with parchment paper hanging over on all 4 sides. Spray parchment paper with nonstick baking spray.
Add the melted butter and graham cracker crumbs together in a medium bowl. Mix well to combine.
Spoon the graham cracker mixture into the prepared baking dish. Use your hands to press the mixture until it makes an even layer.
Bake in the preheated oven for 12-15 minutes. Set aside when done.
For the filling
In the bowl of a stand mixer using the paddle attachment or in a large mixing bowl, using a hand mixer with beaters attached, add the cream cheese. Beat until becomes light and fluffy, about 2 minutes.
Slowly add the confectioners' sugar, mixing as you add. Continue to beat until the cream cheese and sugar are combined, about 2 minutes.
Now add the sour cream, heavy cream, and pure vanilla extract. Beat for 5 minutes. (Continue mixing until thick and creamy.)
Scoop the mixture on top of the baked crust. Use an offset spatula to spread it into an even layer.
Put it into the refrigerator for 2 hours to set.
Check to make sure that it is set or return it to the refrigerator to chill completely. Spoon the raspberry preserves on the cheesecake. Put it back in the refrigerator for another 2 hours
Put the baking pan back in the refrigerator for another 2 hours.
For the topping
Add the white chocolate chips into a microwave-safe medium-sized mixing bowl.
Put the bowl in a microwave for 1 minute at a time to soften the chips
In a small saucepan, over medium heat, add the heavy cream and simmer until the heavy cream is hot, about 5 minutes.
Pour the heated heavy cream over the softened chocolate chips. Mix together until smooth and creamy. Set aside for 5 minutes.
Use a large spoon and drizzle this on top of the cheesecake. Set aside to set.
Slice and serve. Optional garnish, top with fresh raspberries.