Mushrooms and Potatoes, Cooked with Garlic & Ginger from Madhur Jaffrey's Indian Cookery by Madhur J

Ingredients

• 1 tablespoon finely chopped fresh green coriander (optional)
• ¼ teaspoon Garam masala
• ¼–½ teaspoon cayenne pepper
• 1 teaspoon ground cumin seeds
• ½ teaspoon ground coriander seeds
• 3 cardamom pods
• 275 g/9¾ oz tomatoes, peeled and finely chopped
• 4 tablespoons vegetable oil
• 1 teaspoon cumin seeds
• about 1 teaspoon salt
• about ⅓ teaspoon ground turmeric
• 6 large garlic cloves, peeled
• 3 tablespoons water, plus 225 ml/8 fl oz water
• 350 g/12 oz mushrooms
• 2 1/2 cm/1 inch piece of fresh ginger, peeled
• 250–275 g/9–9¾ oz waxy potatoes