Prep the pan: Line the bottom of a 9-inch springform pan with parchment paper.
This makes slicing and lifting easier.
Make the crust: In a bowl, mix graham cracker crumbs, sugar, salt, and melted butter until the mixture looks like damp sand. Press firmly into the bottom of the pan using the bottom of a measuring cup for an even, compact base. Chill while you prepare the filling.
Beat the cream cheese: In a large bowl, beat softened cream cheese with an electric mixer until completely smooth, about 2 minutes.
Scrape the bowl to avoid lumps.
Add sugar and pumpkin: Beat in powdered sugar until combined, then mix in pumpkin puree, vanilla, cinnamon, ginger, nutmeg, cloves (if using), and salt. Blend until velvety and uniform.
Whip the cream: In a separate cold bowl, whip the heavy cream to stiff peaks. The cream should stand up on the whisk without drooping.
Fold gently: Add one-third of the whipped cream to the pumpkin mixture and fold to lighten.
Add the rest and fold just until no streaks remain. Don’t overmix.
Fill and smooth: Pour the filling over the chilled crust. Smooth the top with an offset spatula for clean edges.
Chill to set: Cover and refrigerate for at least 6 hours, ideally overnight.
The longer chill helps it slice neatly.
Serve: Release the springform ring. Top with whipped cream, caramel, or crushed cookies. Slice with a warm, clean knife for tidy edges.