What temperature should I cook at? Preheat the oven to Gas mark 4-5, 180-190˚C, 350-375˚F.
How long should I cook for? Weigh the uncooked joint of meat. The cooking time will be:
Rare - 20 mins per 450g/½kg/1lb + 20 mins at the end Medium - 30 mins per 450g/½kg/1lb + 30 mins at the end Well-done - 35 mins per 450g/½kg/1lb + 35 mins at the end
To check your meat is cooked to your liking, use a meat thermometer inserted into the centre of the joint. It should read 75-80˚C for medium and 80-85˚C for well-done.
For perfect crackling Dry the rind and using a sharp knife score deeply. Rub well with oil (use vegetable oil not olive oil) and salt. Place on a rack in a roasting tin and open cook in the centre of a preheated oven for the calculated cooking time (do not baste or cover the joint or the crackling will go soft).
Standing time Once cooked allow the joint to stand for 10-15 mins prior to carving. This allows the juices to settle giving you a more succulent joint.
Double up To make use of the oven while it's on why not roast your vegetables at the same time. Add them about 45 mins before the end of the cooking time.