Since salt roasting draws moisture (and fat) from unprotected meats, you will need to lardon the loin with pancetta. The result is a delightfully moist pork roast, and a spicy horseradish sauce. To serve 4-6 you'll need:
- 2 1/4 pounds (1 k) bonless pork loin
- A 1/3-inch thick (1 cm) slice flat pancetta (see link to photo), cut into half-inch sticks
- 3-4 leaves fresh sage, chopped
- A pinch of freshly ground nutmeg
- A teaspoon ground mustard
- A green apple, peeled, cored and grated
- The juice of a lemon
- 5 tablespoons heavy cream
- 3 tablespoons grated horseradish
- Pepper
- 6 1/2 pounds (about 3 k) coarse sea salt or kosher salt


