Dense, creamy New York cheesecake with a graham cracker crust is an iconic American dessert known worldwide. This rich, velvety classic is a must-have for family celebrations and special occasions.
Preheat the oven to 325°F (163°C) and set a rack in the lower middle position for even heat control.
In a bowl, combine graham cracker crumbs and melted unsalted butter until evenly moistened; press the mixture firmly into the bottom of a 9-inch springform pan. Bake for 10 minutes and let cool.
Beat the softened cream cheese with white sugar on medium speed until perfectly smooth and silky, scraping down the bowl to prevent lumps.
Blend in sour cream, vanilla extract, lemon zest, and kosher salt until fully incorporated; add eggs one at a time, mixing on low speed and ensuring each egg is fully blended before adding the next to avoid air pockets.
Pour the batter onto the crust, smooth the top, then bake in a water bath at 325°F for 60-70 minutes; the center should jiggle slightly. Turn off the oven, crack the door, and let the cheesecake cool inside for 1 hour to prevent cracks.
Remove the cheesecake and cool completely at room temperature, then chill in the refrigerator for at least 4 hours (optimally overnight) before unmolding and serving for best texture.