Step 1: Preheat your oven to 325°F (163°C).
Step 2: In a medium mixing bowl, combine the finely crushed graham crackers, granulated sugar, and melted butter. Mix until it resembles wet sand, then press it into the bottom of your springform pan.
Step 3: Bake the crust in the preheated oven for 10 minutes.
Step 4: In a large mixing bowl, beat the softened cream cheese until smooth, then gradually add the granulated sugar and flour.
Step 5: Add sour cream, vanilla extract, and milk to the cream cheese mixture. Mix on low speed and add the beaten eggs one at a time.
Step 6: Pour the filling into the crust and smooth the top with a spatula.
Step 7: Bake the cheesecake for 50-60 minutes until the edges are set but the center is slightly jiggly. Turn off the oven and crack the door open to cool for about an hour.
Step 8: Chill the cheesecake in the refrigerator for at least 4 hours or overnight.
Step 9: Carefully remove the sides of the springform pan, slice, and serve plain or with toppings.