To make the spiced potatoes, boil the potatoes for 10–15 minutes until tender
Drain well
Meanwhile, make the pickled onion by mixing the onion slices with the vinegar and 2 tablespoons of cold water in a small bowl
Set aside
To make the raita, grate the cucumber (don’t bother peeling it) and gently squeeze out any excess water
Mix the cucumber in a small bowl with the yoghurts, mint and sugar and add a squeeze of lemon juice
Heat a generous splash of oil in a large frying pan over a high heat and add the potatoes
Fry for 4–5 minutes, until just starting to colour
Add the spices, stir well to coat and fry for another 5 minutes, until golden
Season with salt and a squeeze of lemon juice
Place the potatoes on a plate lined with kitchen paper to absorb any excess oil
Serve the naan or flatbreads with the potatoes, pickled onion and raita and roll up before eating