Onion Frittata with Sherry Vinegar Sauce

4 Servings

25 minutes

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The sautéed onion makes this frittata sweet and succulent, while the butter-vinegar sauce and fresh chives elevate what too often is a dish with humble flavors. If you like, you can use red wine vinegar in place of the sherry vinegar and shredded Gruyère cheese instead of Parmesan. A pile of simply dressed greens goes great with this frittata.




Don't omit the cheese. It adds a savory element that balances the sweetness of the onions. Also, don't use a conventional skillet. Nonstick is essential so that the frittata slides out of the pan with ease.

25 minutes


  • 8

    large eggs

  • Kosher salt and ground black pepper