Add the butter and brown sugar to a stand mixer. Beat on high until well combined, light and fluffy. Add the molasses and eggs, beating until well combined.
Stop the mixer and add the flour, baking soda, baking powder, cinnamon, ginger, nutmeg, cloves, and salt. Stir gently until just combined.
Divide the dough in half, form each half into a long log. Wrap tightly in plastic wrap, refrigerate until chilled, about 2 hours.
Preheat oven to 350F.
One at a time, roll out the dough onto a lightly floured surface. Cut out 12-18 gingerbread men, add them to a baking sheet that has been lined with parchment.
Place the remaining scrapes on another baking sheet that has been lined with parchment.
Bake the gingerbread men and the scraps for 10-12 minutes. Pull the parchment and the cookies off the hot baking sheets onto the counter. Allow to cool.
Lower oven temperature to 325F.
Save the gingerbread men for a garnish on the top of the cheesecake, add the scraps to a food processor.
Run the food processor until only crumbs remain. Measure out 2 cups of crumbs, discard the rest, return the 2 cups of crumbs to the food processor along with 3 tablespoons brown sugar, process to combine.
While the mixer is running, slowly add the melted butter until all the crumbs have been moistened with butter.
Line the bottom of a 9-inch spring form pan with a round of parchment paper.
Firmly press the crumbs into the bottom of the prepared pan.
In the bowl of a stand mixer, add the sugar and cream cheese. Beat until well combined.
One at a time add the eggs, beating well between addition.
Add the remaining filling ingredients, stirring until combined. Pour over the crust in an even layer. Bake at 325F for 90 minutes or until the cheesecake is no longer puffed in the center (it will still jiggle when shaken but will firm up once it has cooled). Refrigerate for at least 4 hours and up 24 hours (overnight preferable).
Run a knife under hot water, then run the knife between the cheesecake filling and the edge of the pan to loosen. Remove cheesecake from the pan, add to a serving platter.
In a medium bowl add the cream, powdered sugar and beer. Beat on high until medium peaks form. Spread the whipped cream over the cheesecake in an even layer. Garnish with gingerbread men. Chill until ready to serve.