Whilst heating up a deep pot of oil cut the potatoes into thick chunks.
Once the oil is hot, add the potatoes then fry on medium heat for 6-8 minutes until lightly browned.
Once the potatoes are crispy and lightly browned, remove from the pan and set aside.
In a frying pan heat up the oil until hot then add the cumin seeds, finely chopped garlic, and crushed chillies then sauté for 1-2 minutes until fragrant.
Add the fried potatoes pieces and give a stir before adding the powdered spices and cook for a further 2-3 minutes.
Add the tomato ketchup and mix until the potato slices are fully covered
Add the dried fenugreek leaves and coriander then cook for another 1-2 minutes.