Aloo Baingan (Potato and Eggplant)

Ingredients

• 1 medium purple eggplant, unpeeled and cut into ½-inch cubes
• 5 medium potatoes, peeled and cut into ½-inch cubes
• 1 teaspoon grated ginger
• 1 small jalapeño, seeded and chopped
• 1 tablespoon coriander powder
• ½ teaspoon paprika
• ½ teaspoon turmeric
• 1 teaspoon cumin seed
• Pinch of asafoetida (hing) (optional)
• 1 medium tomato, cut into ½-inch cubes
• 1½ cups fat-free tomato sauce
• ½ to 1 teaspoon salt (optional)
• 2 tablespoons chopped cilantro