Gather all ingredients before starting recipe.
Dice potatoes, (no need to peel) place in a medium sauce pan, cover with water and bring the water to a boil. Reduce to a fast simmer and cook for 15 minutes, or until potatoes are firm tender. Drain and set aside until ready to combine with onions.
Heat oil in a medium skillet over high heat, add mustard seeds. Cook until the seeds begin to pop.
Add seeded and sliced green chilies, curry leaves chopped onion and grated garlic. Reduce heat to medium high and stir until the onions turn pink and have become translucent, about 5-7 minutes.
Add turmeric and boiled potatoes, season with salt. Mix well, add chopped coriander. Reduce heat, cover with a lid and allow the flavors to combine, cook for another 5 minutes.