| Topping | |
| 1/4 C (1/2 stick) | butter |
| 6 lbs | onions, thinly sliced |
| 6 | fresh thyme sprigs |
| 4 | fresh rosemary sprigs |
| 2 | bay leaves |
| 6 tbsp | extra-virgin olive oil |
| Crust | |
| 1 C | warm water (105°F to 115°F) |
| 1 tbsp | dry yeast (from 2 envelopes) |
| 1 tsp | sugar |
| 2 3/4 C | all purpose flour (more may be needed) |
| 1 tsp | salt |
| 3 tbsp | extra-virgin olive oil |
| yellow cornmeal | |
| 20 | drained and rinsed anchovy fillets |
| 20 | oil-cured black olives, pitted |
| 1 tbsp | chopped fresh thyme |
For topping:
Preheat oven to 350°F. Place butter on heavy large rimmed baking sheet; place in oven until butter melts,
about 5 minutes. Spread half of onions on baking sheet; top with 3 thyme sprigs, 2 rosemary sprigs and 1 bay leaf.
Sprinkle with salt and pepper. Drizzle with 3 tablespoons oil.
Top with remaining onions, 3 thyme sprigs, 2 rosemary sprigs, and 1 bay leaf. Sprinkle with salt and pepper.
Drizzle with 3 tablespoons oil (onion layer will be about 2 1/2 inches thick but will settle during baking).
Bake until onions are very tender and golden, stirring and turning every 30 minutes, about 2 hours total.
Cool. Discard herb sprigs and bay leaves.
(Can be made 1 day ahead. Cover; chill. Bring to room temperature before using.)
For crust:
Pour 1 cup warm water into small bowl; sprinkle yeast and sugar over. Stir to blend.
Let stand until foamy, about 10 minutes.
Blend 2 3/4 cups flour and salt in processor. Add yeast mixture and 2 tablespoons oil; process until dough clumps together, adding more flour by tablespoonfuls if dough is sticky. Process until shiny ball forms, about 1 minute. Turn dough out onto floured work surface and knead until smooth and elastic, about 5 minutes. Coat large bowl with remaining 1 tablespoon oil. Add dough to bowl; turn to coat with oil. Cover with plastic wrap, then kitchen towel. Let rise in warm draft-free area until doubled in volume, about 1 1/2 hours. Punch down dough; cover and let rise until puffed and almost doubled, about 1 hour.
Sprinkle heavy 17x11x1-inch baking sheet with cornmeal. Roll out dough on lightly floured surface to 18x12-inch rectangle. Transfer to prepared baking sheet; press edges of dough up along sides and corners of sheet. Cover with dry kitchen towel; let rise until slightly puffed, 1 hour.
Preheat oven to 475°F. Spread onions over top of dough. Arrange anchovies and olives atop. Bake until crust is golden, about 15 minutes. Sprinkle with thyme. Cut into 3-inch squares. Serve warm or at room temperature. (Can be made 4 hours ahead; let stand at room temperature.)
Makes 12 servings.
Recipe courtesy of epicurious.com. http://www.epicurious.com