Cottage Pie

Ingredients

• tbsp olive oil
• 1kg beef mince (5% fat content)
• 4 onions, finely chopped
• 3 carrots, grated
• 5 celery sticks, finely chopped
• 2 tbsp tomato purée
• 850ml beef stock (4 oxo cubes)
• 500ml water
• 5 tbsp Worcestershire sauce
• 4 tbsp Balsamic vinegar (brings depth of colour)
• 3 tsp Yellow mustard
• 3 tsp Horseradish Sauce
• 2 bay leaves
• Fresh sprigs of thyme (if available)
• Season with salt and ground black pepper
• For the mash topping
• 1.8kg potatoes, chopped
• 225ml milk
• 25g butter
• 200g strong cheddar, grated