Step 1: Brew the Coffee - Start by brewing 1.5 cups of strong coffee or espresso. Let it cool for about 15 minutes.

Step 2: Prepare the Pumpkin Filling - In a large mixing bowl, combine 8 ounces of mascarpone cheese, 1 cup of pumpkin purée, 1/2 cup of granulated sugar, 1 teaspoon of vanilla extract, 1 teaspoon of ground cinnamon, 1/2 teaspoon of ground nutmeg, and 1/4 teaspoon of ground cloves.

Step 3: Whip the Cream - In a separate bowl, pour in 1 cup of chilled heavy whipping cream and whip until stiff peaks form.

Step 4: Fold the Mixtures Together - Gently fold the whipped cream into the pumpkin filling using a spatula.

Step 5: Assemble the Tiramisu - Quickly dip each ladyfinger into the prepared coffee mixture for 1-2 seconds and arrange in a 9x9 dish.

Step 6: Layer the Pumpkin Mixture - Spoon half of the creamy pumpkin mixture over the ladyfingers, spreading it evenly.

Step 7: Repeat the Layering Process - Add another layer of dipped ladyfingers and top with the remaining pumpkin mixture.

Step 8: Chill and Set - Cover with plastic wrap and refrigerate for at least 6 hours or overnight.

Step 9: Dust and Serve - Just before serving, dust the top with unsweetened cocoa powder.