Pork loin with prunes

Ingredients

• 12 plump pitted prunes
• 1/2 cup red wine (a plummy merlot will do the trick)
• 1/2 cup water
• 1.3 kilograms loin of pork (skin on, trimmed, rolled and tied)
• 12 large sage leaves
• sea salt
• olive oil
• conventional gravy or prune sauce, to serve
• Conventional gravy
• 1 tablespoon plain flour
• 1 cup stock
• Prune sauce
• squirt of lemon juice
• 1/2 cup crème fraîche or cream