Hi Jerry
i simmered mine for about 75 mins and about 3 or 4 mm of oil floated to surface
but deffo a couple of more mm arrived during its cooling
as for volume i ended up with about 75%of a 10 litre stock pot
by the way i made a chicken madras using The BE madras recipe it was deffo there just a bit oily using 4 tbls of oil as bruce suggested i am going to go through all the madras recipes on here till i hit the exact note and i know i will hit it using this base
mark