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The Martha Stewart Show, Jan/Feb 2006

  Prep Time 15 minutes
  Total Time 45 minutes
  Yield Serves 4

• 2 tablespoons olive oil
• 1 large onion, halved and thinly sliced
• 1 (8 ounces) baking potato, peeled and thinly sliced
• 1/2 teaspoon dried rosemary, crumbled
• Coarse salt and ground pepper
• 5 large eggs
• 5 large egg whites
• 1/2 cup whole flat-leaf parsley leaves

1. In a medium (10-inch) nonstick broilerproof skillet, heat 1 tablespoon oil over medium heat. Add onion, potato, and rosemary; season with salt and pepper, and toss to combine.
2. Cover skillet, and cook 10 minutes; uncover. Cook, tossing mixture occasionally, until onion and potato are tender, about 5 minutes.
3. Meanwhile, in a medium bowl, whisk together eggs, egg whites, parsley leaves, 3/4 teaspoon salt, and 1/4 teaspoon pepper.
4. Heat broiler with rack set 4 inches from heat. Add remaining tablespoon oil to vegetables in skillet. Pour egg mixture into skillet.
5. Cook on stove, over low heat, lifting mixture a few times around the edges with a spatula to let egg flow underneath. Continue cooking until frittata is almost set in center, about 10 minutes.
6. Place skillet under broiler; broil until frittata is set and top is lightly golden, about 3 minutes. Run a clean spatula around edges to loosen, then slide frittata out onto a serving plate, and cut into wedges.

Cook's Note

Extra yolks: To store (for custards or egg washes), place unbroken yolks in water in a covered container and refrigerate, up to 2 days. If you have no use for them, you can buy unprocessed pure egg whites in the dairy section at the market.

source: http://www.marthastewart.com/339784/potato-and-onion-frittata

tags: vegetarian, brunch