Shepard's Pie

===== INGREDIENTS =====

  * 2 tbsp olive oil
  * 2 lbs ground lamb
  * 1 large onion, grated
  * 1 large carrot, grated
  * 2 cloves garlic, grated
  * 2 tbsp Worcestershire sauce
  * 1½ tbsp tomato paste
  * 2 sprigs of fresh thyme leaves
  * 1 sprig fresh rosemary, chopped
  * 1 cup red wine
  * 1 cup chicken stock
  * 2.5 lbs potatoes (peeled and cut into chunks)
  * 2 egg yolks
  * ¼ cup cream
  * 4 tbsp butter
  * 6 tbsp Parmesan cheese, grated

===== INSTRUCTIONS =====

  - Preheat the oven to 350°F
  - Heat the oil in a large pan until hot.
  - Season the ground lamb and fry in the oil over moderate to high heat for 2-3 minutes.
  - Stir the onions and carrot into the mince then grate the garlic in as well.
  - Add the Worcestershire sauce, tomato paste and herbs and cook for 1-2 minutes, stirring constantly.
  - Pour in the red wine and reduce until almost completely evaporated.
  - Add the chicken stock, bring to the boil and simmer until the sauce has thickened. 
  - Add salt and pepper to taste. 
  - Cook the potatoes in boiling salted water until tender.
  - Drain potatoes and return to the hot pan over low heat to dry out briefly.
  - Pass them through a potato ricer then beat in the egg yolks, cream and butter, followed by about 2 tbsp grated Parmesan. Check for seasoning.
  - Spoon the lamb mixture into the bottom of an ovenproof dish.
  - Using a large spoon, layer the mashed potato generously on top of the lamb mixture, starting from the outside and working your way into the middle.
  - Top with remaining Parmesan and season.
  - Fluff up the mashed potato with a fork to make rough peaks.
  - Bake in the oven for approximately 20 minutes, until bubbling and golden brown.