1 small unwaxed lemon, sliced
small bunch lemon thyme
750g/1lb 10oz new potatoes
1 tbsp black onion seeds
small bunch fresh parsley
1 x 280g jar sundried tomatoes in oil
sea salt and freshly ground black pepper
录 tsp caster sugar
2 whole fish (about 400g/14oz) such as sea bass, sea trout or Dover sole, cleaned