Preheat oven to 350 degrees. Spray 24-cup mini muffin pan with non-stick cooking spray (or line with paper cupcake liners) and set aside.

Put cookies in a large heavy-duty freezer bag and cover with a towel. Pound bag with a rolling pin until cookies are uniformly crushed into very small pieces. (This can also be done in a food processor). 

Transferred crushed cookies to a glass bowl and add melted butter. Stir with a fork until thoroughly combined.  

Divide cookie crumb mixture into 24 equal parts and press into the bottom of each muffin cup firmly with your fingers to form a crust. Bake in preheated oven for 8 – 10 minutes. Remove from oven and set aside. 

In a large mixing bowl, combine cream cheese, brown sugar, and salt with a hand-held mixer. Add pumpkin puree and Greek yogurt to cream cheese mixture and continue beating until combined.

Open egg in a separate bowl before adding to the cream cheese mixture. Then blend in vanilla, cinnamon, nutmeg, ginger, and cloves. Continue blending until all ingredients are thoroughly incorporated into the batter. 

Evenly divide pumpkin cream cheese mixture between the 24 muffin-tin cups, placing on top of the pre-baked cookie crust. Fill each cup slightly higher than the edge of the pan. 

Place muffin tin on center rack of the oven and bake for 15 - 20 minutes, or until the tops are lightly browned and the pumpkin mixture has set. Remove from oven and cool completely before removing mini-cheesecakes from the tin. Refrigerate for several hours or overnight before serving. 

To serve, top with whipped cream and salted-caramel crunch or your favorite caramel sauce. If using homemade whipped cream, spoon it into a plastic sandwich bag and cut a small corner off one bottom side. Pipe onto individual mini-cheesecakes for greater control.