One-pot chicken with chorizo & new potatoes - Master recipes

Ingredients

• 1 whole chicken (about 1.5kg), the best quality you can afford -
• small knob of butter -
• 1 tbsp olive oil -
• ½ lemon -
• 1 bay leaf -
• 1 thyme sprig -
• 300g chorizo ring, thickly sliced -
• 700g new potatoes , halved (or quartered if really large) -
• 12 garlic cloves , left whole and unpeeled -
• large splash of dry sherry -
• 150ml chicken stock -
• handful parsley leaves, roughly chopped -