Classic lasagne

• 500 g minced beef
• 1 carrot finely chopped
• 1 stick celery finely chopped
• 2 onions finely chopped
• 70 g cubetti pancetta
• olive oil
• 2 garlic cloves crushed
• 250 ml white wine
• 1 bay leaf
• 1 tbsp tomato purée
• 2 x 400g tins chopped tomatoes
• 100 ml milk
• 1 bunch basil chopped
• 6 (6-9) sheets depending on size lasagne
• 1 ball mozzarella chopped
• 50 g grated parmesan

BECHAMEL SAUCE

• 100 g butter
• 80 g flour
• 850 ml milk
• 1 bayleaf
• nutmeg