Promised Land CSA » Garlic, chick pea, and spinach soup

Ingredients

• 2 tablespoons olive oil
• 4 garlic cloves, crushed
• 1 onion, roughly chopped
• 2 teaspoons ground cumin
• 2 teaspoons ground coriander
• 5 cups vegetable stock
• 12 ounces potatoes, peeled and finely chopped
• 15-ounce can chickpeas, drained
• 1 tablespoon cornstarch
• 2/3 cup heavy cream
• 2 tablespoons light tahini (sesame seed paste)
• 7 ounces spinach, shredded
• cayenne pepper
• salt and freshly ground black pepper