Heat the oil in a pan on a medium heat setting.

To check that the oil is hot enough sprinkle in a few mustard seeds if they pop the oil is ready.

Then add the remaining mustard seeds, chilli and turmeric powders to the sizzling seeds

Add salt to taste.

Fry this pungent mixture of oil and spices for 1 minute then add the potatoes.

Fry for about 4 minutes.

They will look quite yellow in colour.

Cover the pan and on a low heat cook the potatoes for a further 5 minutes.

Serve immediately.