4 ina sour mashed 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)

very ripe bananas, mashed, granulated sugar, light brown sugar, lightly packed, vegetable oil, extra-large eggs, at room temperature, sour cream, pure vanilla extract, grated zest of 1 orange, all-purpose flour, baking soda, kosher salt, coarsely chopped walnuts (optional), cream cheese frosting, walnut halves, for decorating (optional), cream cheese, at room temperature, unsalted butter, at room temperature, pure vanilla extract, sugar (1/2 lb)