In a large nonstick skillet,preheat vegetable oil. Add cubed potatoes and fry until they ate half cooked. Add minced garlic,shallots and chili. Continue cooking,stirring occasionally,until the shallots have softened and the potatoes have crisp edges. Just before serving pour in tamarind sauce (see recipe below) and stir fry to coat potatoes evenly. Serve fried tamarind …