The dessert has been the butt of the joke for eons, conjuring images of dense, fruity doorstops. But at Hermann’s Bakery in Royal Oak, the seasonal specialty has had regulars coming back for decades. Here, the moist, crumbly cake overflows with chunks of fruit and nuts, the product of a recipe passed down from generation to generation. “My dad started here in ’22,” says owner Richard Hermann. “One of the things I always remember is during the second world war, he made fruitcake all year long.