This pie was invented some time ago it’s fast and simple to cook, and filling can be pretty much anything: mushrooms, braised cabbage, spinach, eggs and herbs, meat… you name it. For the batter: 1 cup of cultured buttermilk; 1 teaspoon baking soda; 1, 5 cups of self-rising flour; 1 egg; Pinch of salt. Filling:...