- 3 large onions
- 1/4 cup olive oil
- 1 teaspoon kosher salt
- 1/4 cup balsamic vinegar or water, optional
- 8 large eggs
- 1/4 cup milk
- 1 teaspoon salt
- 4 ounces prosciutto di Parma
- 1 tablespoon butter
- 1 tablespoon olive oil
- 2 ounces Parmesan, grated
- 6 ounces goat cheese, crumbled
- 1/2 cup caramelized onions
- 1 tablespoon freshly chopped thyme leaves
For the Onions:
Remove the shoot and base of the onions. Peel off the onion skin and cut the onions from pole to pole.
Cut the onion into 1/4-inch slices. Add the olive oil to a large saute pan over medium heat, then add the onions and season with the salt.
Cook until the onions begin to wilt, about 30 minutes, stirring every 15 minutes to prevent sticking. Reduce the heat to low and continue to stir every few minutes as the onions reduce in size.
Continue cooking until the onions are dark brown. Turn off the heat and scrape up any bits that are stuck to the bottom of the pan. Allow the onions to cool.
Cook's Note: The onions can be transferred to an airtight container and will keep, refrigerated, for up to 1 week.
For the Frittata:
Preheat the oven to 350 degrees F.
In a small bowl, add the eggs, milk, and salt and mix to combine.
Bake in the preheated oven until the frittata is set and the goat cheese is melted, about 15 to 20 minutes.
Remove from the oven and using a rubber spatula, loosen the frittata from the sides of the pan. Slide it onto a cutting board and cut into wedges. Arrange the wedges on a serving platter and top with caramelized onions and thyme leaves before serving.