3 garlic cloves, bashed and not peeled
1 lime, zest grated, and Β½ the juice
500g/1lb 2oz potatoes, cut into wedges
Β½ white cabbage (about 500g/1lb 2oz), core removed, finely shredded
2 tsp English mustard
salt and pepper
1 tsp dried mixed herbs
2 tbsp olive oil
400g/14oz plain natural yoghurt
200g/7oz smoked mackerel, skin and any bones removed, flesh flaked