Gordon Ramsay's Roast Turkey With Lemon, Parsley and Garlic

INGREDIENTS

• 1 (5 kg) turkey
• sea salt & freshly ground black pepper
• 2 onions, peeled and halved
• 1 lemon, halved
• 1 head garlic, halved horizontally
• 6 bay leaves
• olive oil, to drizzle
• 8 slices smoked streaky bacon
• lemon
• 375 g butter, at room temperature
• 1 tablespoon olive oil
• 2 finely grated small lemons, zest and juice
• 3 garlic cloves, peeled and crushed
• 1 small bunch flat leaf parsley, leaves only, chopped