Turnips with Fresh Green Coriander & Mint from Madhur Jaffrey's Indian Cookery by Madhur Jaffrey

Ingredients

• ½ teaspoon ground turmeric
• ¼–½ teaspoon cayenne pepper
• 2 1/2 cm/1 inch cube of fresh ginger, peeled and finely grated
• 1 tablespoon ground coriander seeds
• 2 tablespoons very finely chopped fresh mint leaves
• 1½ teaspoons salt
• 425 ml/15 fl oz water
• 3 tablespoons very finely chopped fresh green coriander
• 1 kg/2 lb 4 oz turnips (weight without leaves)
• 375 g/13 oz fresh tomatoes, peeled, or canned tomatoes may be substituted
• 4 tablespoons vegetable oil