Get the Lady Fingers (Savoiardi) HERE!
In a shallow dish combine the espresso, amaretto or extract and milk. Mix to combine and set aside.
In a mixing bowl combine the heavy whipping cream and confectioners sugar. Whip until stiff peaks form and set aside.
In a large mixing bowl combine the mascarpone, pumpkin, light brown sugar and pumpkin pie spice. Gently fold the ingredients together with a rubber spatula until smooth and well combined.
*Note: Try and be gentle while mixing mascarpone because it has a tendency to curdle and become a bit grainy if it's overworked. If this happens then don't worry too much, the tiramisu will still be good, but try to avoid it!
Gently fold the whipped cream into the pumpkin mixture until smooth and airy. Set aside
Dip each lady finger cookie into the coffee mixture and lay them into a 9x13 pan (I used a glass Pyrex) break the cookies to fit them in if necessary. I did two rows of 6 cookies vertically and two rows of 2 cookies horizontally, but just make sure the cookies fit nicely together.
Spoon 1/3 of the filling over the first layer of cookies and repeat 2 more times.
In a small bowl whisk the cinnamon and sugar together and sprinkle it over the top layer.
Refrigerate for at least 4 hours or overnight. Serve chilled.