Preheat your oven to 325°F (163°C).
In a bowl, combine the graham cracker crumbs and melted butter, mixing until the crumbs are evenly coated. Press the mixture into the bottom of a 9-inch (23cm) springform pan to form the crust.
In a separate bowl, beat the cream cheese, sugar, and vanilla extract until smooth and creamy. Add the eggs one at a time, beating well after each addition.
Stir in the sour cream until fully incorporated into the cream cheese mixture.
Pour the cream cheese filling over the graham cracker crust in the springform pan. Smooth the top with a spatula.
Arrange the sliced strawberries on top of the filling, gently pressing them into the mixture.
In a small saucepan, heat the strawberry jam over low heat until it becomes runny. Drizzle the warm jam over the strawberries, creating a beautiful glaze.
Bake the cheesecake in the preheated oven for about 60-70 minutes, or until the center is set and the edges are slightly golden.
Once baked, remove the cheesecake from the oven and let it cool to room temperature. Then, refrigerate it for at least 4 hours, or overnight, to allow it to fully set.
When ready to serve, carefully remove the sides of the springform pan. Garnish with additional sliced strawberries and whipped cream if desired.
Enjoy!