once common ring-shaped cookie. In Cuisine and Culture: A History of Food and People, culinary historian Linda Civitello writes that the hole was invented because it allowed the doughnuts to cook faster. By 1870 doughnut cutters shaped in two concentric circles, one smaller than the other, began to appear in home-shopping catalogues". Topping After frying, ring doughnuts are often topped. Raised doughnuts are generally covered with a glaze (icing). Cake doughnuts can also be glazed, powdered with confectioner's sugar, or covered with cinnamon and granulated sugar. They are also often topped with cake frosting (top only) and sometimes sprinkled with coconut, chopped peanuts, or sprinkles (also called jimmies). Holes Doughnut holes are small, bite-sized doughnuts that were traditionally made from the dough taken from the center of ring doughnuts. Before long, doughnut sellers saw the opportunity to market "holes" as a novelty and many chains offer their own variety, some with their own brand names such as "Munchkins" from Dunkin' Donuts and "Timbits" from Tim Hortons. Traditionally, doughnut holes are made by frying the dough removed from the center portion of the doughnut. Consequently, they are considerably smaller than a standard doughnut and tend to be spherical. Similar to standard doughnuts, doughnut holes may be topped with confections, such as glaze or powdered sugar. Originally, most varieties of doughnut holes were derivatives of their ring doughnut (yeast-based dough or cake batter) counterparts. However, doughnut holes can also be made by dropping a small ball of dough into hot oil from a specially shaped nozzle or cutter. This production method has allowed doughnut sellers to produce bite-sized versions of non-ring doughnuts, such as filled doughnuts, fritters and Dutchies. Filled Filled doughnuts are flattened spheres injected with fruit preserves, cream, custard, or other sweet fillings, and often dipped into powdered sugar or topped off with frosting. Common varieties include the Boston cream, coconut, key lime, and jelly. Other shapes Others include the fritter and the Dutchie, which are usually glazed. These have been available on Tim Hortons' doughnut menu since the chain's inception in 1964, and a 1991 Toronto Star report found these two were the chain's most popular type of fried dough in Canada. There are many other specialized doughnut shapes such as old-fashioned, bars or Long Johns (a rectangular shape), or twists. Other shapes include balls, flattened spheres, twists, and other forms. In the northeast United States, bars and twists