Bombay Sweet Potatoes

1. Peel potatoes and cut into 2-inch pieces. Place in a large saucepan and cover with water. Bring to a boil over medium-high heat. Cook until just beginning to soften, 10 to 15 minutes. Drain.
2. Heat oil in a wok or large sauté pan over medium-high heat. Add mustard seeds and bay leaf. When seeds start jumping, add ginger and onion. Sauté until onion is deep golden brown. Reduce heat to medium-low and add turmeric, chili powder, lemon juice, garlic, salt and potatoes. Cook, stirring occasionally, taking care not to break the potatoes. Add tomatoes and a little water to release any sticking potatoes and cook a few minutes more, until potatoes are tender. When ready to serve, top with cilantro.

Recipe by Relish Chef Jon Ashton.