The Concentrated Crunch of the Roasted Nuts and the intense sweetness of the dried fruit balance each other in this bread. The combination of flavors and textures makes a bread that is easy to enjoy. The hazelnuts should be thoroughly roasted. Whole nuts are baked at 350° to 400°F on sheet pans for 8 to 12 minutes. Once cool enough to handle, their skins should readily come off when rubbed between your hands, and the nuts themselves should have a brownish hue. The interior portion of a loaf of bread never gets above 212°F, so the nuts will not continue to roast as the bread bakes (except those nuts that are exposed on the surface). Therefore, take the time to get a full roasting so the nuts can impart all of their delicious flavor to the bread. The prunes should be chopped coarsely before using.