Shepherd's Pie

Ingredients

• 4 tbsp olive oil
• 2 Ibs round steak mince
• 2 rashers chopped into very small pieces
• 1 beef OXO cube crushed
• Salt & freshly ground black pepper
• 25 g butter
• 1 onion diced
• 3 carrots diced
• 1 parsnip diced
• 1 stick of celery diced
• 1 garlic clove crushed
• 60 ml white wine (optional)
• 1 tbsp self-raising or plain flour
• 2 tbsp Worcestershire sauce
• 1 tbsp freshly chopped thyme
• 1 tbsp freshly chopped parsley
• 2 tbsp tomato purée
• 1 bay leaf
• Handful frozen peas
• ¾ - 1 pint chicken stock
• 7-8 medium-large potatoes (topping)
• 50 g cheddar (topping)
• 1 egg yolk (topping)
• 40 ml warm milk (topping)
• 25 g butter (topping)