Pork & Crackling Baguette

12 thin slices cold roast Specially Selected Pork

4 buns or chunks of fresh baguette, split

1 tbsp olive oil mixed with 1 tbsp seeded mustard

4 heaped tbsp leftover stuffing from the roast

A handful or 2 of watercress

1 small apple, thinly sliced

Salt and black pepper

1 large or 2 small shallots, peeled and very thinly sliced

Crackling cut into thin strips (kitchen scissors are useful for this)