1Boil the potatoes until they are tender. Once cooked, peel and roughly mash them. Set aside.
Heat the vegetable oil in a pan over medium heat. Add the mustard seeds and let them splutter.
Add the cumin seeds and sauté for a few seconds until they release their aroma.
Add the finely chopped onion and sauté until it turns golden brown.
Add the slit green chilies, turmeric powder, and red chili powder. Stir well.
Add the mashed potatoes to the pan and mix well with the spices.
Season with salt to taste and add the curry leaves. Stir to combine.
Cook for a few more minutes, allowing the flavors to meld together.
Garnish with chopped coriander leaves before serving.
Serve the potato curry hot with dosa.