On one of my first trips to India, at a bus stop in Poona, there was a street stand where the vendor was roasting potatoes over charcoal, chopping them, and tossing them with curry spices and crispy onions. He served the mixture wrapped in a piece of newspaper. It was amazing, and it inspired this dish.
There are so many curry spice mixtures from around the world. This recipe employs one of the most common. You can use either yams or sweet potatoes in this recipe.
Cooks' Note
*Black mustard seeds: Small round seeds of the black mustard plant, these are much more pungent than white mustard seeds and used extensively in Indian and other Asian cooking.
