Heat the oven to 325°F (165°C). No need to preheat like you’re launching a rocket—just get it warm enough. Line a 9-inch springform pan with parchment for easy release.
Beat the softened cream cheese and sugar until smooth. Use medium speed and don’t overmix; you’re aiming for silk, not air-sculpted chaos.
Add eggs one at a time, then mix in sour cream, vanilla, flour, and a pinch of salt. Scrape the sides of the bowl so everything gets invited to the party.
Pour the batter into the pan. Give the pan a few gentle taps to pop any air bubbles. It’s a cheesecake, not a balloon animal.
Bake for about 35–40 minutes, until the center jiggles slightly. If the edges look set but the middle is wiggly, you’re right on track. Turn off the oven and leave the door ajar for 10 minutes, then chill in the fridge for at least 4 hours (overnight is even better).