Prawn-stuffed flatfish

INGREDIENTS

• 1.2 - 1.5 kg flatfish, such as flounder, lemon or Dover sole, plaice turbot or brill, or 4x200g, from
• , ask your fishmonger
• 2 medium onions, peeled and finely sliced
• sea salt
• freshly ground black pepper
• 3 tablespoons olive oil
• 2 cloves garlic, peeled and finely grated
• cayenne pepper
• 1 lemon
• 250 g raw prawns, from
• , ask your fishmonger, peeled
• olive oil
• 1 splash white wine
• 1 small bunch fresh flat-leaf parsley