he other kind of “cup cake” referred to a cake whose ingredients were measured by volume, using a standard-sized cup, instead of being weighed. Recipes whose ingredients were measured using a standard-sized cup could also be baked in cups; however, they were more commonly baked in tins as layers or loaves. In later years, when the use of volume measurements was firmly established in home kitchens, these recipes became known as 1234 cakes or quarter cakes, so called because they are made up of four ingredients: one cup of butter, two cups of sugar, three cups of flour, and four eggs. They are plain yellow cakes, somewhat less rich and less expensive than pound cake, due to using about half as much butter and eggs compared to pound cake. The names of these two major classes of cakes were intended to signal the method to the baker; “cup cake” uses a volume measurement, and “pound cake” uses a weight measurement.
In the early 21st century, a trend for cupcake shops was reported in the United States, playing off of the sense of nostalgia evoked by the cakes. In New York City, cupcake shops like Magnolia Bakery gained publicity in their appearances on popular television shows like HBO’s Sex and the City. In 2010, television presenter Martha Stewart published a cook book dedicated to cupcakes.