BBC Food - Recipes - Moussaka

Ingredients

• 2 aubergines , cut into 1cm/½in slices
• 1 tbsp fine sea salt
• 750g/1lb 10½oz lamb mince
• 1 onion , finely chopped
• 2 garlic cloves , crushed
• 1 tsp dried oregano
• 1½ tsp dried mint
• 2 bay leaves
• 1 cinnamon stick
• 1 tbsp plain flour
• ½ tsp flaked sea salt, plus extra for seasoning
• 200ml/7fl oz red wine
• 1 x 400g/14oz can chopped tomatoes
• 2 tbsp tomato purée
• 7 tbsp olive oil
• 500g/1lb 2oz Maris Piper potatoes , peeled, sliced into 1cm/½in slices
• sea salt
• freshly ground black pepper
• 50g/2oz butter
• 50g/2oz plain flour
• 400ml/14fl oz milk
• 1 tsp finely grated nutmeg
• 25g/1oz finely grated parmesan
• 1 free-range egg , beaten