- 3 cups (360 g) all-purpose flour - 1 cup (240 ml) warm water (about 105–115°F / 40–46°C) - 2 1/4 tsp (7 g) active dry yeast (one packet) - 1 tsp (5 g) sugar - 1 tsp (5 g) salt - 2 tbsp (30 ml) olive oil for the dough - 3 tbsp (45 ml) olive oil for cooking onions - 2 lb (900 g) yellow onions, thinly sliced - 1 tsp (5 g) fresh thyme leaves or 1/2 tsp (1 g) dried thyme - 1 bay leaf - 1 tsp (4 g) kosher salt (for onions) - 12 anchovy fillets, approx. 2 oz (60 g), drained - 12–16 Niçoise or small black olives, pitted (about 80–100 g) - Freshly ground black pepper to taste - Extra olive oil for brushing
1. Make the dough: In a bowl, combine warm water, sugar, and yeast. Let sit 5–10 minutes until foamy. In a large bowl, mix flour and 1 tsp salt, make a well, add yeast mixture and 2 tbsp (30 ml) olive oil. Stir until a shaggy dough forms, then knead on a lightly floured surface 6–8 minutes until smooth. Place in a lightly oiled bowl, cover, and let rise until doubled, about 1 hour. 2. While dough rises, caramelize onions: Heat 3 tbsp (45 ml) olive oil in a wide skillet over medium-low. Add sliced onions, 1 tsp (4 g) salt, thyme, and bay leaf. Cook slowly, stirring occasionally, until onions are deep golden and jammy, about 40–50 minutes. Remove bay leaf and adjust seasoning; let cool slightly. 3. Preheat oven to 450°F (230°C). If using a baking stone, place it in the oven to heat. 4. Shape dough: Punch down dough and stretch or roll into a rough rectangle or oval about 12 x 10 inches (30 x 25 cm) on a parchment-lined baking sheet or preheated baking stone. Brush surface lightly with olive oil. 5. Assemble tart: Spread caramelized onions evenly over the dough, leaving a small border. Arrange anchovy fillets in parallel lines or a lattice across the onions. Scatter pitted olives over the top and finish with a grind of black pepper and a light drizzle of olive oil. 6. Bake for 12–18 minutes, until crust is golden and edges are crisp. Remove from oven and let rest 5 minutes. 7. Slice and serve warm or at room temperature, as is traditional in Nice.
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