vegetable oil 2 tbsp
pork loin rib roast 1.2kg (see note above)
freshly ground pepper
full-cream milk 575ml or more
Heat the butter and oil over a medium-high heat in a casserole just large enough to contain the pork. When the butter foam subsides, add the meat, fat side down. Brown thoroughly on all sides lowering the heat if the butter starts to turn dark brown.
Add the salt, pepper and 250ml of the milk. Add the milk slowly lest it boil over. Allow the milk to come to a brisk simmer for 20 or 30 seconds, turn the heat down to medium-low and cover the pot with the lid on slightly askew.
Cook at a very lazy simmer for about 1 hour, until the milk has thickened into a light nut-brown sauce. (The exact time it will take depends largely on the heat of your burner and the thickness of your pot.) When the milk reaches this stage, and not before, add another 250ml of the milk, let it simmer for about 10 minutes, then cover the pot putting the lid on tightly. Check and turn the pork from time to time.
After 30 minutes, set the lid slightly askew. Continue to cook at minimum heat and, when you see there is no more liquid milk in the pot, add the remaining milk. Continue cooking until the meat feels tender when prodded with a fork and all the milk has coagulated into small nut-brown clusters. Altogether it will take between 2½ and 3 hours. If, before the meat is fully cooked, you find that the liquid in the pot has evaporated, add another 100ml of milk, repeating the step if it should become necessary.
When the pork has become tender and all the milk in the pot has thickened into dark clusters, transfer the meat to a cutting board. Let it settle for a few minutes, then cut into slices about 1cm thick or slightly less, and arrange them on a warm serving platter.
Tip the pot and spoon off most of the fat – there may be as much as a mugful of it – being careful to leave behind all the coagulated milk clusters. Add 2 or 3 tablespoons of water and boil away the water over a high heat, at the same time using a wooden spoon to scrape loose the cooking residues from the bottom and sides of the pot. Spoon all the pot juices over the pork and serve immediately.