1 large red chilli
small handful fresh coriander, root included
2 garlic cloves
4cm/1½ in piece fresh root ginger
2 stalks lemongrass
1 lime, juice only, or to taste
fresh lime wedges
200g/7oz potatoes, cooked, mashed and cooled (about two medium potatoes)
ready-made sweet chilli sauce, for dipping
2 tsp fish sauce, or to taste
flour, for dredging
1 tbsp olive oil, for drizzling
sea salt
4 tbsp vegetable oil or olive oil, for frying
300g/10½ oz fish (such as salmon, haddock, cod, gurnard or whiting)
3-4 lime leaves