Curried cauliflower soup

1. 1. Reserve 1 cup of small cauliflower florets, ¼ cup of onion, ¼ cup of leeks and ¼ cup of carrots for garnish.

2. 2. In a large pot, warm ¼ cup of the vegetable oil over medium heat. Add the remaining onion, leek and carrots and cook, stirring frequently, until the vegetables have begun to soften, about 6 minutes. Add the cauliflower and cook until soft, about 10 minutes longer.

3. 3. In a small skillet over medium-high heat, combine the coriander and cumin seeds and toast until they are fragrant and slightly browned, about 2 minutes. In a square of cheesecloth, combine the toasted seeds and the cilantro and tie into a bundle, securing it with a piece of kitchen twine. Add the spice bundle, turmeric, curry powder and garlic to the vegetables in the pot and cook until fragrant, about 1 minute.

4. 4. Add the vegetable stock, bring a simmer and cook until the vegetables are very tender, about 25 minutes. Remove the cheesecloth bundle, then puree the soup in a blender until smooth. Season to taste with salt and pepper. Return the puree to the pot and keep warm.

5. 5. In a large skillet, warm the remaining 3 tablespoons of vegetable oil over medium-high heat. Add the reserved cauliflower, onion, leek and carrots and cook until the vegetables are just tender and lightly browned, about 6 to 8 minutes. Season to taste with salt and pepper and reserve.

6. 6. In a small mixing bowl, whisk together the yogurt, olive oil and lime juice and season to taste with salt and pepper.

7. 7. Divide the hot soup among 6 deep bowls, garnish with the reserved vegetables and drizzle with the yogurt mixture. Serve immediately.