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[...]

1 cup butter , divided 1/3 cup garlic clove , peeled 1 poblano chile , stems & seeds removed 4 -6 russet potatoes 1 tablespoon salt 1 teaspoon salt 1/4 cup[...]

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[...]