½ tsp ground coriander
¼ cucumber
½ lemon or lime, juice only
large handful fresh mint leaves, roughly chopped
½ small red onion, thinly sliced
2 large waxy potatoes, scrubbed and cut into small bite-sized cubes
¼ tsp golden caster sugar
1 tsp hot chilli powder
1 tsp cumin seeds
sea salt
½ tsp ground turmeric
vegetable oil, for frying
1 tbsp apple cider vinegar
60g/2oz low-fat yoghurt (5% fat)
2 large or 4 medium naan or flatbreads, to serve