in a blender. combine the oil, walnuts,cheese and rosemary; cover an process until blended an nuts are finely chopped. with a bread knife, split focaccia into two horizontal layers. spread the rosemary mixture over cut sides of bread.
on bottom of bread, loayer the prosciutto, apple and brie, replace bread top. cut into quarters.
Cook on a indoor grill for 2-3 min or until bread is browned cheese has melt. cut each wedge in half ummmm ummmmm