This frittata is meant to be thin, with just enough egg to bind the filling. Sunchokes, also known as Jerusalem artichokes, are available at Diamond Organics. Yukon Gold potatoes can be substituted.
- 12 ounces sunchokes, scrubbed and cut into 1/4-inch-thick slices
- 5 fresh or dried bay leaves
- 1/4 cup extra-virgin olive oil
- 4 garlic cloves, smashed
- Fine sea salt and freshly ground pepper
- 1 bunch Swiss chard (12 ounces), stems removed
- 5 large eggs
- 1 1/4 ounces freshly grated Parmesan cheese (3/4 cup)
- 3 scallions, thinly sliced crosswise
Preheat oven to 500 degrees. Toss together sunchokes, bay leaves, 3 tablespoons oil, and garlic on a rimmed baking sheet. Season with salt and pepper. Roast until tender and dark golden-brown around edges, 15 to 20 minutes. Discard bay leaves. (Leave oven on.)
Bring a pot of salted water to a boil. Add Swiss chard, and cook until tender, about 5 minutes. Drain; let cool slightly. Squeeze out excess liquid.
Whisk eggs with 1/4 teaspoon pepper, the Parmesan, and scallions in a bowl. Heat remaining tablespoon oil in a 12-inch ovenproof skillet over medium-high heat. Add sunchokes and Swiss chard, and spread on bottom of skillet. Add egg mixture, filling in spaces between vegetables. Swirl to distribute (eggs will not cover vegetables completely). Cook, shaking skillet occasionally, until sides are set, about 2 minutes.
Transfer to oven, and bake until puffed and center is set, 4 to 5 minutes. Place a large platter over skillet, and invert. Serve hot, warm, or at room temperature.