Prep the pan: Line the bottom of a 9-inch springform pan with parchment. Lightly grease the sides to help with clean release later.
Make the crust: In a bowl, mix graham crumbs, sugar, melted butter, and a pinch of salt until it looks like damp sand.
It should clump when pressed. If it’s too dry, add another tablespoon of melted butter.
Press and chill: Firmly press the mixture into the bottom and slightly up the sides of the pan. Use the bottom of a flat measuring cup for an even layer.
Chill in the fridge for at least 15 minutes while you make the filling.
Beat the cream cheese: In a large bowl, beat the softened cream cheese with a hand mixer until completely smooth, 2–3 minutes. Scrape down the bowl so there are no lumps.
Add sugar and flavor: Beat in powdered sugar, sour cream, vanilla, lemon juice, and a pinch of salt until silky and combined. Keep mixing until it’s glossy and lump-free.
Whip the cream: In a separate cold bowl, whip the heavy cream to stiff peaks.
It should stand up firmly when you lift the beaters. Don’t overwhip to butter.
Fold it in: Gently fold the whipped cream into the cream cheese mixture in two additions. Use a spatula and light strokes to keep it airy.
Fill the crust: Spoon the filling into the chilled crust and smooth the top with an offset spatula.
Tap the pan gently on the counter to pop any air bubbles.
Chill to set: Cover and refrigerate for at least 6 hours, but overnight is best. The longer it chills, the cleaner the slices.
Add toppings and serve: Run a thin knife around the edge, release the springform, and transfer to a serving plate. Add your favorite toppings just before serving.
Slice with a warm, dry knife for neat edges.