Whisk egg yolks and 3/4 cup white sugar in a bowl for a couple of minutes, until lightened in color and doubled in volume. Set aside.
Mix milk, pumpkin puree and 1 1/4 teaspoon of pumpkin spice in a small saucepan and bring it to the stove, over medium heat, stir occasionally as you let the mixture come to a boil.
As soon as you see the first bubbles emerging, remove from the heat.
Add about 1/3 of the hot milk/pumpkin mixture to the egg/sugar mixture while whisking non-stop. Once that's incorporated, add a bit more of the hot mixture while whisking. Do this until the whole milk/pumpkin mixture is incorporated with the eggs. This is called tempering, and we add the hot liquid slowly to the yolks so they don't get cooked.
Pour this mixture back into saucepan and stir, over medium heat until it boils and thickens.
Don’t stop stirring, mixture will look lumpy but then smooth out and get thick. It should take a few minutes to achieve a thick and smooth custard.
Turn the heat off, transfer pumpkin custard to a bowl and cover the surface with some plastic wrap. You must do this so when the custard cools, it won’t form a skin on top.
Whisk mascarpone cheese and cooled pumpkin custard together. Set aside
I used a 8x8" tall glass dish.
Mix coffee and Kahlua in a shallow bowl. Keep it nearby to dip the ladyfinger cookies before placing them in the tiramisu.
First layer: cover the bottom of the dish with a layer of ladyfingers dipped in the coffee+Kahlua.
Second layer: half of the Pumpkin Mascarpone cream.
Third layer: one third of the whipped cream.
Fourth layer: coffee dipped ladyfingers
Fifth layer: remaining half of the Pumpkin Mascarpone
Sixth layer: one third of the whipped cream
Seventh layer: coffee dipped ladyfingers
Eighth layer: remaining third of the whipped cream
Place Tiramisu in the fridge for at least 24 hours, or more. Before serving, mix cocoa powder and 1/4 teaspoon of pumpkin spice, and sprinkle it all over the top of the Tiramisu using a sifter.
I used a 9" springform pan.
Prepare your pan by lining the bottom and sides with plastic wrap. I used 2 pieces and lined them crosswise.
First layer: 1 cup of the Pumpkin Mascarpone cream. Spread it to the ends as best as you can.
Second layer: coffee dipped ladyfingers
Third layer: Half of the remaining Pumpkin Mascarpone cream (after you've removed 1 cup of it for the bottom of the pan)
Fourth layer: Half of the whipped cream
Fifth layer: coffee dipped ladyfingers
Sixth layer: remaining Pumpkin Mascarpone cream
Seventh layer: coffee dipped ladyfingers
To assemble: simply turn the pan over on a cake platter, open the sides of the springform pan and remove plastic from the top. You can also decorate the sides with ladyfinger cookies.
Right before serving, mix 1 tablespoon of cocoa powder with 1/4 teaspoon of pumpkin spice, use a sieve or a sifter to sprinkle it on top of the tiramisu.
Tiramisu will store nicely in the fridge for up to 1 week.
*My recipe for homemade Ladyfingers and the video can be found here.
*Tips to dip the ladyfingers: Dunk each ladyfinger cookie in the coffee mixture, one by one and do this quickly or the cookies will be too soggy, specially if you are using homemade. Another alternative is to put the coffee+kahlua in a spray bottle and simply spray the cookies one by one before placing them in the tiramisu.
***Make sure to only dip each ladyfinger in the coffee mixture right before you place it on the tiramisu.