3 mashed potatoes caramelized onions blue cheese Recipes

yukon gold potatoes, peeled and quartered, salt, divided, butter or margarine, olive oil, onions, diced, garlic cloves, minced, chopped fresh or 1/2 tsp dried rosemary, butter or margarine, half-and-half, crumbled gorgonzola or blue cheese, pepper, garnish: fresh rosemary sprigs

olive oil, white onions, thinly sliced, brown sugar, salt, baking potatoes (such as yukon gold, about 2 lb), peeled and cubed, parsnips (about 1 lb), peeled and cut into 1-inch pieces, low-sodium chicken broth, heated, crumbled blue cheese, fresh thyme, chopped