- 1 1/2 tablespoons olive oil
- 1/3 cup finely chopped yellow onion
- 1 garlic clove, very finely chopped
- 5 large eggs
- 2/3 cup chopped serrano ham
- 2/3 cup grated Swiss cheese
- 1 teaspoon finely chopped thyme leaves
- 1 teaspoon finely chopped flat-leaf parsley
- Coarse salt and freshly ground black pepper
- Heat the boiler. Heat the olive oil in a large, ovenproof skillet over medium heat. Add the onion and cook until clear and translucent, about 1 minute. In a bowl whisk together the eggs, ham, 1/3 cup of the cheese, thyme, and parsley. Season with salt and pepper.
- Add egg mixture to onions and cook, without stirring, about 8 minutes, or until the bottom and edges are set but center is still soft.
- Sprinkle the remaining cheese on the top of the frittata. Broil about 4 inches from the heat until the cheese is bubbling, about 1 minute. Transfer to a cutting board, cut into wedges, and serve.