BLACKBERRY SWIRL CHEESECAKE

Steps:

• For the crust: Position a rack in the middle of the oven and preheat to 325 degrees F.
• Add the cookies and sugar to the bowl of a food processor and pulse to fine crumbs. Drizzle in the butter and pulse until the crumbs are completely coated with the butter.
• Press the crumb mixture firmly into the bottom of a 10-inch springform pan. Bake until set, 15 to 18 minutes; let cool completely on a rack, 30 minutes.
• Wrap the bottom and sides of the pan with a large piece of foil and put it in a large roasting pan.
• For the filling: Beat together the cream cheese and sugar in a large bowl with an electric mixer on medium speed for 1 minute. Add the sour cream and beat until just combined. Add the heavy cream and beat until just combined. Mix in the eggs by hand, one at a time, until just combined. Mix in the vanilla by hand until just combined. (Take care not to overmix or the cheesecake will turn into a souffle!). Set aside.
• Puree half the blackberries in a blender until completely smooth. Transfer to a small bowl and ladle in 1/4 cup of the cheesecake mixture. Stir to combine. Pour the remaining plain cheesecake batter into the crust.
• Use an ice cream scoop or large spoon to drop scoopfuls of the blackberry batter on top of the plain batter. Drag a long wooden skewer through the batter, making sure the skewer reaches down to the bottom, to marble the colors for a tie-dye effect. Add enough hot water to the roasting pan to come about halfway up the sides of the springform pan.
• Bake until the outside of the cheesecake is set, but the center is still slightly loose, about 1 hour 20 minutes. Turn the oven off and leave the cheesecake inside for 1 hour.
• Remove the cheesecake from the roasting pan to a cooling rack. Run a knife around the edge of the pan and let the cheesecake cool to room temperature, about 2 hours. Cover and refrigerate at least 8 hours and up to 12 hours.
• Run a knife around the edge of the pan one more time, then open the pan clasp to release the sides. Transfer the cheesecake to a serving platter or cake stand. Smooth the edges of the cheesecake with a knife. Slice and serve with whipped cream and the remaining blackberries.