I have bought 24 tins of Napolina chopped tinned tomatoes (currently on offer at Asda 4 for £1) and I want to make a large batch of basic pasta sauce to freeze. I have googled several recipes but most dont seem to require cooking long enough to 'reduce'. I dont want the sauce to be runny (would like the consistency of 'Dolmio'). Does anyone have a tried and tested recipe that produces a thickish sauce. Thanks in advance for any help.