Butternut Squash Chilli Ginger Soup : 2 butternut squash (about 4 3/4 pounds total), halved lengthwise, seeded, 2 tablespoons vegetable oil, 2 cups thinly sliced onion, 1 tablespoon golden brown sugar, 2 teaspoons minced fresh ginger, 2 garlic cloves, coarsely chopped, 1/2 cinnamon stick, 5 cups (or more).