3 ina sour mashed potatoes Recipes

boiling potatoes, peeled, kosher salt, milk, unsalted butter, sour cream, freshly ground black pepper

white boiling potatoes, peeled and quartered, kosher salt, unsalted butter, half-and-half, sour cream, fresh ground black pepper, unsalted butter, chopped yellow onions (2 onions), all-purpose flour, kosher salt, fresh ground black pepper, chicken stock, preferably homemade, heated, cognac or 1 tbsp brandy, heavy cream (optional)