Meanwhile, heat oil in a large nonstick skillet over medium heat. Add onion and celery; cook, stirring, until softened, about 5 minutes. Add apples, golden raisins, garlic, sage and thyme; cook, stirring, for 2 minutes. Add 1/2 cup broth and cook until most of the liquid has evaporated, 5 to 6 minutes. Season with salt and pepper. Transfer to a large bowl.