Prepare the Crust:
Preheat the oven to 325°F (163°C).
In a bowl, mix the graham cracker crumbs, melted butter, and granulated sugar until well combined.
Press this mixture firmly into the bottom of a 9-inch springform pan.
Bake for 8 minutes, then let it cool while you prepare the filling.
Make the Cheesecake Filling:
In a large bowl, beat the cream cheese and granulated sugar until smooth and creamy.
Add the eggs one at a time, mixing gently after each addition.
Stir in the vanilla extract, sour cream, and lemon juice.
Pour half of the filling over the cooled crust.
Prepare the Strawberry Swirl:
In a small saucepan, combine the pureed strawberries, sugar, cornstarch, and lemon juice.
Cook over medium heat, stirring constantly, until thickened (about 3-5 minutes).
Let it cool slightly, then swirl spoonfuls into the cheesecake batter using a knife or skewer.
Pour the remaining cheesecake batter on top and smooth the surface.
Bake the Cheesecake:
Bake at 325°F (163°C) for 50-55 minutes, until the edges are set but the center is slightly jiggly.
Turn off the oven and let the cheesecake cool inside with the oven door slightly open for 1 hour.
Transfer to the refrigerator and chill for at least 4 hours or overnight.
Add the Toppings:
Spread strawberry glaze or preserves over the chilled cheesecake.
Arrange fresh sliced strawberries on top.
Pipe whipped cream around the edges for an elegant touch.