Start to finish: 1 hour, 20 minutes Hands-on time: 1 hour Servings: 6 (about 10 1/2 cups) 2 tablespoons vegetable oil, preferably grapeseed 1 1/2 cups thinly sliced onion 2 teaspoons minced garlic 1 1/2 pounds carrots, peeled, half cut into 1-inch chunks and half cut into 1/2-inch dice 1…