Sheet cake

A sheet cake is a cake baked in a large, flat rectangular pan such as a sheet pan or a jelly roll pan. These single-layer cakes are almost always frosted, and may be decorated on the flat surface on the top. In the United States, these inexpensive cakes are commonly available in supermarkets, and are often served at office and birthday parties. Sheet cakes may be made in any flavor, with chocolate and vanilla being the two most common. They are made from a single piece of cake. Ingredients such as nuts, chocolate chips, or coconut may be stirred into the cake batter or sprinkled over the top. If the cake has been split and filled, it becomes a layer cake. Baking is a food cooking method using prolonged dry heat acting by convection, rather than by thermal radiation, normally in an oven, but also in hot ashes, or on hot stones.[1] The most common baked item is bread but many other types of foods are baked. Heat is gradually transferred "from the surface of cakes, cookies and breads to their centre. As heat travels through it transforms batters and doughs into baked goods with a firm dry crust and a softer centre".[2] Baking can be combined with grilling to produce a hybrid barbecue variant, by using both methods simultaneously or one before the other, cooking twice. Baking is related to barbecuing because the concept of the masonry oven is similar to that of a smoke pit. Baking has been traditionally done at home by women for domestic consumption, by men in bakeries and restaurants for local consumption and when production was industrialised, by machines in large factorie

. The art and skill of baking remains a fundamental one and important for nutrition, as baked goods, especially breads, are a common food, economically and culturally important. A person who prepares baked goods as a profession is called a baker.Sheet pans, baking trays or baking sheets are flat, rectangular metal pans used in an oven. They are often used for baking bread rolls, pastries and flat products such as cookies, sheet cakes, and swiss rolls. These pans, like all bakeware, can be made of a variety of materials, but are primarily aluminum or stainless steel. The most basic sheet pan is literally a sheet of metal. Common additional features that may be found in sheet pans include a lip on one or more edges to prevent food from sliding off, handles to aid in placing the pan into the oven, and removing it again, or a layer of insulation or air (air bake pan) designed to protect delicate food from burning.A Swiss roll or jelly roll is a type of sponge cake roll. The thin cake is made of flour, eggs, and sugar and baked in a very shallow rectangular baking tray, called a sheet pan. The cake is removed from the pan and spread with jam or buttercream, rolled up, and served in circular slices. The origins of the term "Swiss roll" are unclear. The cake originated in Central Europe, but not in Switzerland as the name would suggest. It appears to have been invented in the nineteenth century, along with Battenberg, doughnuts and Victoria sponge. The shape of the Swiss roll has inspired usage of the term as a descriptive term in other fields, such as in optics and blues Moussesic.