1. Put pork on aluminum foil (two pieces folded together). 2. Rub pork with dry mustard, thyme and onion soup mix. 3. Fold aluminum foil over roast so there is only one opening - pour in apple juice and seal it all well. Put in roasting pan. 4. Cook at 350 degrees for 4-5 hours. 5. Take out of oven, pour juice into pan and make gravy (separately).