1. Prepare the Graham Cracker Crust:

• Preheat your oven to 350°F (175°C).
• In a mixing bowl, combine graham cracker crumbs, sugar, and melted butter. Stir until evenly moistened.
• Press the mixture firmly into a 9×13-inch baking pan to create an even layer.
• Bake for 10 minutes. Remove from the oven and allow the crust to cool while preparing the filling.

2. Make the Cheesecake Filling:

• In a large mixing bowl, beat the cream cheese until smooth and creamy.
• Gradually add the sugar and mix until fully combined.
• Add the eggs one at a time, mixing well after each addition.
• Stir in the vanilla extract and sour cream until the mixture is smooth.
• Gently fold in the pureed strawberries, ensuring an even distribution.

3. Assemble and Bake the Cheesecake Bars:

• Pour the cheesecake filling over the cooled graham cracker crust, spreading it evenly.
• Reduce the oven temperature to 325°F (163°C).
• Bake for 35-40 minutes, or until the center is set and slightly jiggles when the pan is shaken.
• Allow the bars to cool completely at room temperature, then refrigerate for at least 2 hours or overnight for best results.

4. Prepare the Strawberry Topping:

• In a saucepan, combine sliced strawberries and sugar. Cook over medium heat, stirring occasionally, until the mixture thickens (about 10-15 minutes).
• Stir in lemon juice and vanilla extract. Let the sauce cool completely before using.

5. Finish and Serve:

• Spread or drizzle the cooled strawberry topping over the chilled cheesecake bars.
• Use a sharp knife to slice into bars, wiping the knife clean between cuts for neat edges.
• Serve chilled and enjoy!