Peel and cube the potatoes 1 cm. (they will cook faster). Put 1TBsp olive oil, 1TBsp of butter, salt and sugar . Put in a 200C oven 25-30 mins. Stir few times for even roasting.
In the meantime, put 2TBsp olive oil in a deep frying pan. Peel and crush the garlic cut the coriander
Heat the garlic until fragrant
Heat the garlic until fragrant. Then add the coriander. Add pepper and chili stir
Take out the potatoes and discard the oils
Add in the frying pan. Sautee for few mins. If they stick just deglaze with 1 Tsp of water. Or some lemon juice.