 Some spurgos are similar to Polish pączki, but some specific recipes, such as cottage cheese doughnuts ("varškės spurgos"), were invented independently.In the Netherlands, "oliebollen", referred to in cookbooks as "Dutch doughnuts", are a type of fritter, with or without raisins or currants, and usually sprinkled with powdered sugar.Variations of the recipe contain slices of apple or other fruits.