Creating a luscious Strawberry Swirl Cheesecake can be quite simple if you follow these steps:

1. Preheat Oven: Begin by preheating your oven to 325°F (160°C). Prepare a 9-inch springform pan by greasing it or lining it with parchment paper.

2. Make the Crust: In a bowl, combine the graham cracker crumbs, granulated sugar, and melted butter. Mix until the crumbs are evenly coated. Press this mixture into the bottom of the prepared pan, ensuring an even layer.

3. Bake the Crust: Place the crust in the preheated oven for about 10 minutes. Remove and allow it to cool while preparing the filling.

4. Prepare the Strawberry Swirl: In a small saucepan, combine the pureed strawberries, granulated sugar, and lemon juice. Cook over medium heat for about 5-7 minutes, stirring constantly until the mixture thickens slightly. Remove from heat and set aside to cool.

5. Make the Cheesecake Filling: In a large mixing bowl, beat the softened cream cheese and granulated sugar until smooth. Then add vanilla extract, mixing well. Next, add the eggs one at a time, mixing until just combined, followed by the sour cream. Scrape down the sides of the bowl as needed.

6. Combine and Swirl: Pour half of the cheesecake filling over the cooled crust in the pan. Drizzle half of the strawberry puree on top. Pour the remaining filling over, followed by the remaining strawberry puree. Use a knife or skewer to create a swirling effect without completely mixing it.

7. Bake: Carefully place the springform pan in the oven and bake for 55-60 minutes. The center should be slightly jiggly but set.

8. Cool: Once baked, turn off the oven and crack the door open. Allow the cheesecake to cool inside for about an hour. Then, remove it from the oven and let it cool further at room temperature.

9. Chill: Once cooled, refrigerate the cheesecake for at least 4 hours, preferably overnight, to ensure the filling is firm and flavorful.

10. Serve: When ready to serve, carefully remove the sides of the springform pan. Slice and enjoy your Strawberry Swirl Cheesecake!