Mashed Potatoes with whites

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[...]