Wash the apples, but don't even try to peel or core them, much too small! Put in a saucepan with a teeny amount of water, a tblsp, and simmer until they are a puree. Or cook in the microwave until they are pulp. Either way, mash them up and sieve to get rid of the stalks, blossom ends and pips.
If using the star anise, break it into pieces. not too small, people will need to be able to see it.
Add everything else, stir well. The mixture should look like a heavy cake batter.
Place the apple mixture in the lined tin and place in an oven pre-heated to 160°C and bake for about 25 minutes, or until the filling is bubbling. Remove from the oven, allow to cool and set then serve.
Pastry
While the apples are cooking, make the pastry with the oil and flour. Put the oil and water both in a bowl and add almost as much water as oil, to make a loose dough. Roll out the pastry and use to line a 20-22cm pie tin.