Tags: Food.
The Long John is a bar-shaped yeast risen filled doughnut often embellished with glaze or icing. In some parts of the United States unfilled bar doughnuts are called long johns and their filled counterparts are called éclairs. In some other parts of the United States Long Johns are marketed as éclairs; the two pastries look similar but are created with different types of dough and fillings.A Bismark is a filled round doughnut.