Spanish Onion and Potato Torta

Spanish Onion and Potato Torta From Martha Stewart

Serves 6 to 8

Without a bread-loaf base, this omelet can also be cut into small pieces and served as a tapa or an appetizer, either warm or at room temperature.

7 tablespoons olive oil 1 medium Spanish onion (about 12 ounces), sliced into 1/4-inch-thick half moons (These are similar to yellow onions, only larger and a bit sweeter. Substitutes: Bermuda onion OR red onion (sweeter) OR yellow onion ) 3 medium Yukon gold or other floury potatoes (about 1 pound), sliced into 1/4-inch-thick rounds 8 large eggs 1 teaspoon salt, plus more to taste Pinch freshly ground pepper, plus more to taste 1 twelve-inch-diameter round loaf rustic bread 1 clove garlic 1 small head frisée, or other chicory lettuce 2 teaspoons sherry vinegar 1. Preheat oven to 325°. Heat 1 tablespoon oil in a 10-inch oven-safe skillet over medium-high heat. Add onion; sauté, stirring, until golden, 8 to 10 minutes. Transfer to a small bowl. 2. Return the skillet to heat, and add 1 tablespoon oil. Add potatoes, cover, and sauté until soft, stirring, 12 to 15 minutes. Transfer to the bowl with onions, and combine. 3. Whisk together eggs; add salt and pepper. Transfer to the bowl with onions and potatoes, and combine. 4. Return the skillet to the heat, and add 1 tablespoon oil. Add egg mixture, and cook until edges set and start to brown, about 1 1/2 minutes. Cover, and bake in the oven until set, about 10 minutes. Remove cover, and broil until top is golden. 5. Meanwhile, slice bread in half crosswise, and reserve the top half for another use. Remove some of the inside from bottom half, and discard crumb. Toast bread under the broiler until golden. Remove, brush with 3 tablespoons oil, and rub with garlic clove. Toss frisée with remaining tablespoon oil, vinegar, and a pinch of salt and pepper. Scatter greens over bread, and slide torta over greens. Cut in wedges, and serve.