Crush the biscuits with a food processor or by bashing with a rolling pin.
Add the melted butter and stir until evenly coated.
Tip into the cake tin and press out to the sides until flat and even.
Place in the fridge until needed.
For the Cheesecake Mix:
Mix the cream cheese and sugar.
Fold in the pumpkin puree until even and smooth.
Stir in the spice mix.
Fold in the whipped double cream very carefully until even.
Tip onto the biscuit base and spread evenly.
Place in the fridge to set for at least 2 hours but preferably overnight.
To Decorate (Optional):
Pipe on some double cream and add Halloween sprinkles.
Notes
Decoration is completely optional, you could also add Halloween sweets and chocolates, or leave it plain.
My tin is a 25cm (ish) loose-bottom flan tin. If yours is a little bigger or smaller, don't worry. Your cheesecake will just be a little thicker or thinner.