Little Gem lettuce, leaves separated
1 green chilli, finely chopped
2 tbsp finely chopped coriander
small bunch coriander, finely chopped
1 garlic clove, crushed
2 tbsp finely chopped gherkin or cornichon
½ lime, zest and juice
½ tsp Dijon mustard
2 tbsp capers, finely chopped
200g/7oz mayonnaise
sea salt and freshly ground black pepper
1–2 tbsp black sesame seeds
50²µ/1¾´Ç³ú breadcrumbs
2 tsp soy sauce
pinch sugar
1 tbsp vegetable oil, for cooking
1 free-range egg, beaten
250g/9oz firm white fish such as cod or haddock, skinned, de-boned and roughly chopped
burger buns