Follow these simple steps to create your delicious Cheesecake Bars:

1. Preheat Oven: Preheat your oven to 325°F (163°C). Line an 8-inch square baking pan with parchment paper, leaving some overhang for easy removal later.

2. Prepare Crust: In a mixing bowl, combine graham cracker crumbs, ½ cup sugar, and melted butter. Mix until well combined.

3. Press into Pan: Press the crumb mixture evenly into the bottom of the prepared baking pan, creating a solid crust layer.

4. Bake the Crust: Bake the crust in the preheated oven for 8-10 minutes until lightly golden. Remove from the oven and set aside to cool.

5. Make the Filling: In a large bowl, beat the softened cream cheese until smooth. Gradually add 1 cup of sugar and vanilla extract. Beat until fluffy.

6. Add Eggs: Add the eggs one at a time, mixing well after each addition. Be careful not to overbeat the mixture.

7. Incorporate Flour: Add all-purpose flour and mix until fully combined, ensuring there are no lumps.

8. Add Sour Cream: Mix in sour cream until everything is well blended and smooth.

9. Pour Filling: Pour the cream cheese filling over the cooled crust in the baking pan.

10. Bake: Return the pan to the oven and bake for 30-35 minutes, or until the center is set but slightly jiggly.

11. Cool Completely: Remove from the oven and let the bars cool at room temperature for about 20-30 minutes. Then refrigerate for at least 2 hours or until completely chilled.

12. Slice and Serve: Once chilled, use the parchment overhang to lift the bars from the pan. Slice into squares and serve.

By following these steps, you will create incredible cheesecake bars that are not just pleasing to the eye but also an absolute delight to enjoy!