2 3/4 cups bread flour, divided
1 package dry yeast (about 2 1/4 teaspoons)
1 cup warm water (100°to 110°), divided
2 tablespoons extra virgin olive oil, divided
1 to 2 teaspoons chopped fresh rosemary
11/2 teaspoons salt, divided
Cooking spray
2 1/4 cups vertically sliced red onion
1 tablespoon sugar
1/2 teaspoon grated orange rind
1/8 teaspoon freshly ground black pepper
1/4 cup coarsely chopped walnuts
20 Oven-Dried Fig halves**
1/2 cup (2 ounces) crumbled blue cheese

Lightly spoon flour into dry measuring cups; level with a knife. Combine 1/2 cup flour and yeast in a large bowl, stirring with a whisk. Add 1/2 cup warm water; let stand 30 minutes. Add 2 cups flour, remaining 1/2 cup water, 1 tablespoon oil, rosemary, and 1 1/4 teaspoons salt; stir until a soft dough forms. Turn dough out onto a lightly floured surface. Knead until smooth and elastic (about 8 minutes), and add enough of remaining flour, 1 tablespoon at a time, to prevent dough from sticking to hands (dough will feel tacky). Place dough in a large bowl coated with cooking spray, turning to coat top. Cover and let rise in a warm place (85°), free from drafts, 1 hour or until doubled in size. (Press two fingers into dough. If an indentation remains, the dough has risen enough.) While dough rises, heat remaining 1 tablespoon olive oil in a large nonstick skillet over medium heat. Add onion and sugar; cook 15 minutes or until deep golden brown, stirring mixture occasionally. Add remaining 1/4 teaspoon of salt, orange rind, and pepper. Cool mixture slightly. Preheat oven to 425°. Punch dough down; form into a ball. Place dough on a baking sheet coated with cooking spray; let rest 5 minutes. Roll dough into a 14 x 12-inch rectangle (about 1/4 inch thick). Arrange onion mixture, walnuts, and Oven-Dried Fig halves evenly over dough, leaving a 1/2 inch border on all sides. Sprinkle with cheese, and gently press toppings into dough to adhere. Bake at 425 degrees for 20 minutes or until flatbread is golden brown and cheese melts.

** To make Oven-Dried Figs, arrange figs in a single layer on a foil-lined baking sheet coated with cooking spray. Bake at 250 deg for 1-1/2 to 2 hours or until almost dry but still soft.