Wash hands. 1] Cut the peach in half and remove the pit. 2] Rub with a little oil and balsamic vinegar, season with salt and pepper and lightly grill. Slice into thin slices. 3] Place the goat cheese on the bottom half of the bread. Top with prosciutto, arugula tossed with poppyseed dressing and grilled peaches. 4] Top with more goat cheese. 5] Place the top half of the bread on the sandwich and grill in a Panini press until heated through and golden.