In Ontario and the prairie western provinces of Canada, as well as parts of the Midwest in the U. S., such a round jelly- or custard-filled doughnut is commonly called a "Bismarck," while a filled bar doughnut is called a "Long John", and usually contains pastry creme, custard or whipped cream but can contain a jelly filling. Other Canadian terms include "jambuster" in Manitoba, and "Burlington bun" in Nova Scotia.