Rinse pork roast.
Make sure rind is scored well. (You can ask your butcher to do this.)
Pour boiling water over, pat dry.(This should lift the rind off the meat and help it to crisp.)
Rub salt to taste into the rind and scoring.
Drizzle with cider vinegar and rub in.
Add more salt and rub again.
Put in MW and select rolled roast function.
Cook as needed according to weight.
Serve with Harvest salad and roast potatoes.