Preheat your oven to 325°F (163°C). Yes, it’s a real number—trust me, it matters. Tide yourself over with a snack while the oven warms.
Make the crust: combine graham cracker crumbs and melted butter. Press firmly into a 9-inch springform pan. Bake 8 minutes, then cool. No need to audition for a baking show here—just press and go.
Beat the cream cheese and sugar until smooth and luscious. Scrape the sides, then keep going until there are no lumps hiding like shy cats.
Beat in eggs one at a time, then add vanilla and sour cream if using. Mix until just combined. Don’t overmix—your future self will thank you when the texture is silky, not airy or rubbery.
Fold in lemon zest if you love a citrus kick. Pour filling over the cooled crust and smooth the top with a spatula. Gentle is the vibe here.
Bake for 45–50 minutes until the center is just set (a little wiggle is okay). Turn off the oven, crack the door, and let it cool slowly for best texture. Then refrigerate for at least 4 hours, preferably overnight.
Release from the pan, slice, and serve. Optional toppings: berry compote, fresh berries, or a drizzle of chocolate—whatever makes your heart sing.