01 -  Line a standard 12-cup muffin tin with paper liners. 
 02 -  In a medium bowl, mix graham cracker crumbs, melted butter, and granulated sugar until the texture is like wet sand. 
 03 -  Divide the crumb mixture evenly among the liners (about 1 heaping tablespoon each) and press firmly into the bottoms to form a crust. Refrigerate while you prepare the filling. 
 04 -  In a large bowl, beat the softened cream cheese until smooth. Add powdered sugar, vanilla extract, and lemon juice (if using); beat until creamy and well combined. 
 05 -  In a separate bowl, whip the cold heavy cream to stiff peaks. 
 06 -  Gently fold the whipped cream into the cream cheese mixture until fully incorporated and smooth. 
 07 -  Spoon or pipe the cheesecake filling evenly over the chilled crusts, smoothing the tops. 
 08 -  Refrigerate for at least 2 hours, or until set and firm. 
 09 -  Before serving, remove cheesecakes from the liners and top with your choice of toppings.