2 tablespoons olive oil
1 onion, diced
3 cloves garlic, minced
2 medium carrots, peeled and chopped
2 celery stalks, chopped
3 cups cooked chicken, shredded
4 cups chicken broth
1 cup frozen peas
1 cup frozen corn
1 cup heavy cream
1 teaspoon dried thyme
1 teaspoon dried rosemary
Salt and pepper, to taste
2 tablespoons flour
2 tablespoons butter