Mashed Potatoes with seasoning

2 1/2 lbs baking potatoes , such as Yukon Gold, peeled and cut into 2 inch cubes 1/4 teaspoon salt 1/2 cup skim milk 2 tablespoons butter or 2 tablespoons[...]

4 lbs russet potatoes , peeled, cut into 1 1/2-inch cubes 1/4 cup butter 2 tablespoons minced fresh sage 1 teaspoon minced fresh sage 3/4 cup whipping cream[...]

1 3/4 lbs red potatoes (about 3 large) 4 large dry-cured black olives 1/4 cup olive oil 1/4 cup milk 1/2 teaspoon salt freshly ground white pepper 1 Peel[...]