Clean your pumpkin of seeds, remove the skin and slice it.
Weigh the pumpkin to check that you have 500g (1 pound 2 ounces).
Meanwhile you have pre-heated the oven at 180ºC (355ºF). Put the pumpkin slices onto an oven tray.
Cover the tray with foil.
Put the tray in the oven and cook for 1 hour.
Weigh the apple mustard to check that you have 50g (2 ounces).
Zest half a lemon.
Finely crush the amaretti biscuits.
When the pumpkin is ready (you can easily break it with a fork), remove it from the oven.
Place the pumpkin into a food mill.
This is what you should get processing the pumpkin through the food mill.
Add the apple mustard into the food mill and grind it.
Add the lemon zest into the food mill and grind it.
Add the Parmesan cheese to the bowl containing the pumpkin pulp.
Now, add the amaretti biscuits.
Mix well together with a wooden spoon.
Add a pinch of nutmeg.
Add a pinch of salt.
Now, if the mix looks too soft, you can add a small quantity of breadcrumbs to set it. If the mix looks too dry, you may add a tiny quantity of apple mustard syrup.
Now, you have two options: put the mix in the freezer and defrost it the day before you intend to prepare the ravioli or let set it in the fridge for few hours and then use it for stuffing your ravioli.