Preheat oven to 350°F (175°C). Grease a 4 & 1/2" springform pan.
Combine the graham cracker crumbs and butter until thoroughly combined.
Press into the bottom and partially up the sides of the prepared pan.
Place the pan on a lined, rimmed baking sheet to catch any potential spills or leaks.** Bake 5 minutes. Set aside while you make the filling.
To make the filling:
Reduce oven temperature to 300°F (150°C).
Using an electric mixer at medium speed, beat the cream cheese, sour cream, sugar, egg, and vanilla until thoroughly combined and smooth.
Transfer the batter to the partially baked crust. Smooth evenly.
Leaving the springform pan on the lined baking sheet, bake 35 to 40 minutes, or until the center is almost set.
Turn off the oven and leave the cheesecake inside for another 30 minutes.
Remove the cheesecake from the oven. Run a thin knife or spatula around the edge of the cheesecake.
Allow the cheesecake to cool to room temperature. Then cover and refrigerate for at least 4 hours.
To make the topping:
Place the cream in a large, cold mixing bowl. Using an electric mixer with a whisk attachment, beat at medium-high speed until the cream begins to thicken.
Sprinkle the sugar over the cream. Continue beating until you can lift the whisk out of the whipped cream and a peak that curves downward forms in the cream. This should take 4 to 5 minutes.
Spread the whipped cream over the cheesecake. Drop small amounts of preserves over the top of the whipped cream. Use a toothpick to swirl into the whipped cream.
Notes
*If possible, use preserves with a smooth consistency. If there are lumps of berries in your preserves, try to avoid those and use the smoother, thinner parts for easier swirling.
**A pan with a tight seal should not leak, but I usually add this step because it's still a possibility.