Ragu how long do you give it

[BoRED S2upid]

So a Ragu sauce it can have mince, veal, veg, whatever you like but the key question is how long do you cook it for?

I've seen everything from 20 mins to 3 or 4 hours cooked in the oven.

I quite often cook it twice initially for an hour or so the day before leave it overnight then another 30 mins before it's served I haven't got the time to cook it for 3 hours!