In a medium mixing bowl, combine the ginger snap cookie crumbs with the melted unsalted butter. Stir until the cookie crumbs are thoroughly coated in butter, resulting in a mixture that resembles wet sand.
Evenly distribute the crumb mixture across six dessert cups, pressing down firmly to create a solid crust at the bottom of each cup for stability and texture.
In a separate large mixing bowl, use an electric mixer to beat the softened cream cheese until it is smooth and creamy, ensuring no lumps remain.
Gradually add the powdered sugar, vanilla extract, ground ginger, cinnamon, and nutmeg to the cream cheese. Mix well until all ingredients are fully incorporated and the mixture is homogeneous.
In another bowl, use a hand mixer to whip the heavy cream until stiff peaks form. This should take about 3-5 minutes. Be careful not to over-whip, as this can turn the cream grainy.
Gently fold the whipped cream into the cream cheese mixture using a spatula, taking care to maintain the lightness of the whipped cream. Mix until no white streaks remain, and the mixture is fluffy and airy.
Take the molasses and fold it gently into the cheesecake mixture. This will give it a deep, rich flavor reminiscent of traditional gingerbread.
Spoon the creamy cheesecake filling into each dessert cup over the prepared ginger snap crust, filling them right to the brim for an indulgent treat.
Cover the cheesecake cups with plastic wrap and refrigerate for a minimum of 4 hours, preferably overnight, to allow the flavors to meld and the filling to set perfectly.
Before serving, generously sprinkle crushed ginger snap cookies on top for added texture and garnish with a dollop of whipped cream, if desired, for an extra touch of sweetness.