Mashed Potatoes with back

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[...]

1/2 cup buttermilk 1/2 cup mayonnaise 3 tablespoons finely chopped fresh chives 3 tablespoons finely chopped fresh Italian parsley 1/2 teaspoon garlic salt[...]

2 lbs russet potatoes , peeled and quartered 1 cup milk 1 cup packed chopped green onion , bottoms and tops 1/2 cup unsalted butter , melted 1 Cook potatoes[...]