Automated equipment designed for high-volume production of small, ring-shaped pastries is a staple of carnival and fairground midways. These devices typically employ a compact, often automated system for mixing, extruding, frying, and sometimes even sugaring or glazing the finished product. A typical example involves a hopper of batter, a mechanism to drop rings of batter into hot oil, a conveyor belt to move the frying pastries through the oil, and a collection area for the finished treats.
The popularity of this equipment stems from its ability to produce a consistently sized and shaped product quickly and efficiently, meeting the demands of large crowds. This specialized equipment allows vendors to offer a freshly made, appealing treat with a relatively low labor cost. Historically, these compact, high-output machines evolved from earlier, larger donut-making equipment, adapting to the unique needs of mobile food vendors at fairs and carnivals. The enticing aroma and readily available, bite-sized portions contribute to the enduring appeal of these treats.