Crust: Combine graham cracker crumbs with sugar and butter. Press into the bottom of a 9x13 inch pan. Chill in the fridge.
Cheesecake Mixture: Beat cream cheese and sugar until smooth. Mix in sour cream and vanilla. Add eggs one at a time, then fold in flour.
Assembly: Pour cheesecake mixture over crust. Dollop raspberry puree on top. Use a toothpick to create swirls.
Bake: Preheat oven to 325°F (163°C). Bake for 35-40 minutes. Let cool, then refrigerate for at least 3 hours.
Topping: Pipe whipped cream on top, add a raspberry, and dust with powdered sugar before serving.
Prep Time: 20 minutes | Cooking Time: 40 minutes | Total Time: 4 hours (including chilling)