Preheat oven to 350°. In a shallow bowl, combine flour, salt and pepper. Add pork chops, 1 at a time, and turn to coat. , In a large skillet, brown pork chops in oil on both sides. Arrange in a single layer in an ungreased 13x9-in. baking dish. In a large bowl, combine soup, 1/2 cup sour cream, broth, ginger and rosemary; pour over chops. Sprinkle with half the onions. , Cover and bake until tender, 45-50 minutes. Stir remaining sour cream into sauce. Sprinkle with remaining onions. Bake, uncovered, until onions are browned, about 10 minutes longer.