Cider Vinaigrette Roasted Root Vegetables

Name: Cider Vinaigrette Roasted Root Vegetables
Ingredients: 1/2 cup apple cider vinegar; 1/2 cup extra virgin olive oil; 3 tablespoons dark brown sugar; 1/4 teaspoon kosher salt; Freshly ground black pepper , to taste; 4 medium golden beets, peeled and thickly sliced; 4 medium carrots, peeled and sliced lengthwise into 1- to 2-inch long sticks; 3 medium garnet sweet potatoes , sliced lengthwise into 1- to 2-inch long sticks; 4 medium parsnips, sliced lengthwise into 1- to 2-inch long pieces, any tough woody core removed; 1 large red onion, thickly sliced; 3/4 teaspoon thyme, dry or fresh