Honey Roasted Carrots

Ingredients for the carrots:

• 2 ½ pounds carrots* don't worry, it looks like a lot, but they shrink up quite a bit as they roast, you'll be quite sorry if you don't make enough :)
• 2 tablespoons honey
• 1 tablespoon olive oil
• 1 tablespoon coriander seeds lightly crushed
• 1 teaspoon cumin seeds lightly crushed (or a scant teaspoon ground cumin)
• 2 teaspoons thyme leaves roughly chopped (if you don't have thyme, just omit it, the carrots will still be wonderful).
• Sea salt and freshly ground black pepper
• 2 tablespoon cilantro leaves roughly chopped

Ingredients for the yogurt sauce:

• 1 ½ tablespoons tahini paste
• ½ cup Greek yogurt
• 2 tablespoons fresh lemon juice
• 1 garlic clove
• ⅛ teaspoon sea salt