First of all wash, scrub and peel the potatoes. Dice them finely. Rinse the diced potatoes twice or thrice to remove starch. Drain and set aside.

heat 2 tablespoons oil in a thick pan. Temper with mustard, urad dal and curry leaves. Saute well.

Add sliced onions and saute till they turn soft.

Add diced potatoes and saute well for 3-4 minutes.

Season with salt, chili powder and turmeric powder. Saute well for 3-4 minutes.

Cover and cook in medium flame for 10-12 minutes. Splash some water if needed to prevent sticking.

Once the potatoes turn golden and crispy, remove from flame. Serve with sambar rice.