For glaze, in a small saucepan, bring vinegar to a boil over medium heat; cook until reduced to about 1/4 cup.
Cut a lengthwise slit down the center of each fig; fill with 1-1/2 teaspoons cheese. Wrap each with a piece of prosciutto; place on a baking sheet. Sprinkle with rosemary and pepper.
Bake at 425° for 10-12 minutes or until prosciutto is crisp. Serve warm with glaze.
Editor's Note: Amber-colored dried figs (labeled Turkish or Calimyrna) are recommended for this recipe. Mission figs, which are black, are smaller and hold less cheese. If large stems are present, remove them before stuffing figs.