A Dutch baby pancake, sometimes called a German pancake, a Bismarck, or a Dutch puff, is a sweet popover that is normally served for breakfast. It is derived from the German Pfannkuchen. It is made with eggs, flour, sugar and milk, and usually seasoned with vanilla and cinnamon, although occasionally fruit or another flavoring is also added. It is baked in a cast iron or metal pan and falls soon after being removed from the oven. It is generally served with fresh squeezed lemon, butter, and powdered sugar, fruit toppings or syrup. A basic batter incorporates 1/3 cup flour and 1/3 cup liquid per egg.