Ingredients

• 1 ½ pounds zucchini, sliced
• 1 tablespoon butter
• 1 large onion, finely chopped
• 1 (1 inch) piece fresh ginger, grated
• 1 teaspoon ground cumin
• 1 teaspoon ground coriander
• 1 teaspoon mustard seeds
• ½ teaspoon ground cinnamon
• ½ teaspoon ground turmeric
• ¼ teaspoon ground cardamom
• ¼ teaspoon cayenne pepper
• sea salt to taste
• freshly ground black pepper to taste
• 1 cup vegetable stock
• ¼ cup chopped fresh cilantro
• 4 cinnamon sticks