Grilled Onion Frittata
Steps
Preheat an oven to 350f.
In a large bowl , combine the red and yellow onions , salt , pepper and olive oil and toss to coat well.
Preheat a grill pan over high heat.
Arrange the onion wedges on the pan and cook until they are browned and tender underneath , about 5 minutes.
Turn and cook until the onions are very tender , 5 to 7 minutes more.
Transfer to a plate and set aside.
In a large bowl , whisk together the eggs and cream until blended.
Stir in the cheese , salt and pepper until smooth.
In a 10-inch braiser or ovenproof fry pan over medium-low heat , melt the butter , add the rosemary and cook , stirring , for 1 minute.
Pour the egg mixture into the pan and fold gently to combine the rosemary and eggs.
Arrange the grilled onions on top , transfer the pan to the oven , and bake until the frittata is golden and cooked through , 12 to 15 minutes.
Ingredients
red onion, yellow onion, salt & freshly ground black pepper, olive oil, eggs, heavy cream, parmigiano-reggiano cheese, unsalted butter, fresh rosemary