 |
Combine oil, onion and seasonings in heavy plastic bag; mix well. |
 |
Add roast; coat well with marinade and refrigerate 2 hours to overnight. |
 |
Preheat oven to 350°F. Line roasting pan with aluminum foil. |
 |
Combine Kosher salt and water to form a thick paste. Pat 1 cup of paste into a 1/2-inch thick rectangle in foil lined pan. |
 |
Place roast on salt layer; pack remaining salt paste around meat to seal well. |
 |
Bake at 350°F 60-70 minutes or until thermometer registers 135°F. (Steam may cause salt crust to crack slightly during roasting.) |
 |
Remove from oven; let stand 15 minutes. Remove and discard salt crust. Carve thinly. |