2 small green chillies
1 large handful fresh coriander, stalks included
1 unwaxed lime, juice and zest
435g tin pineapple chunks, drained
115g/4oz plain flour, sifted
Β½ tsp freshly ground black pepper
4 tsp caster sugar
pinch salt
85g/3oz unsalted butter, plus extra for greasing
100g/3Β½oz unsalted butter, melted
3 free-range eggs, beaten
8 tbsp Greek-style yoghurt, plus more if required
400g/7oz smoked mackerel, skin removed