Sprinkle olives and rosemary over dough; gently knead on a lightly floured surface 4 or 5 times or just until olives are incorporated into dough. Cover dough; let rest 10 minutes.
Roll dough into a 10 x 8-inch rectangle. Beginning with long side, roll up jelly-roll fashion; pinch seam to seal.
Place roll, seam side down, on a baking sheet coated with cooking spray. Cover and let rise in a warm place (85), free from drafts, 1 hour or until doubled in size.
Preheat oven to 37
Uncover dough; cut several 2-inch diagonal slits into top of dough using a sharp knife.
Brush dough with egg white.
Bake at 375 for 40 minutes or until loaf sounds hollow when tapped.
Remove loaf from baking sheet; cool on a wire rack.