Mashed Potatoes with whites

4 russet potatoes , about 2 lb total, peeled and cut into rounds 1/4 inch thick 3 parsnips , about 3/4 lb total, peeled and cut into rounds 1/4 inch thick 4[...]

2 lbs russet potatoes , peeled and cut into large chunks 1/2 cup unsalted butter or 1/2 cup unsalted margarine , room temperature 1 tablespoon minced fresh[...]

4 1/2-5 lbs idaho russet potatoes , peeled and cut into 1-inch chunks whiter pepper kosher salt 3/4 cup whole milk 1/2 cup butter , cut into slices, plus 1[...]

3 lbs russet potatoes (about 6) 6 leeks , chopped, washed well, and drained (white and pale green parts only) 6 tablespoons unsalted butter 1 tablespoon fresh[...]

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[...]

5 baking potatoes 1/4 lb butter , sliced 1/2 cup heavy cream salt 5 organic domestic mushrooms , sliced 2 tablespoons pure olive oil 2 cloves garlic , sliced[...]

2 whole garlic heads 1/4 cup butter , softened 1 tablespoon shallot , finely chopped 2 teaspoons rosemary , finely chopped 2 1/2 lbs red potatoes or 2 1/2 lbs[...]