Preheat your oven to 325°F (160°C).
In a bowl, mix graham cracker crumbs with melted butter.
Press the mixture into the bottom of a springform pan to form the crust.
Bake the crust for 10 minutes, then let it cool.
In a large bowl, beat softened cream cheese until smooth.
Gradually add melted white chocolate and powdered sugar, mixing well.
Stir in sour cream and vanilla extract until combined.
Fold in fresh raspberries gently to avoid crushing them.
Pour the cheesecake filling over the cooled crust.
Bake for 60 minutes or until the center is set. Chill for at least 4 hours before serving.