Grilled Onion Frittata Recipe

Elevate your breakfast or brunch with this irresistible Grilled Onion Frittata! Sweet and savory grilled onions meet a creamy, cheesy egg custard in this easy-to-make, oven-baked delight. Perfectly caramelized onions provide a depth of flavor that will leave you wanting more. A stunning and flavorful dish perfect for weekend brunches or a special weeknight dinner.

Prep Time 15 mins
Cook Time 40 mins
Calories 233.9 kcal
Protein 27g
Rating 5.0 (2 Reviews)
Grilled Onion Frittata 113

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Recipe Author

Chef Forktionary, author of this recipe

Recipe adapted from Food.com. Standardized by Forktionary.

Ingredients for Grilled Onion Frittata

  • 1 large Red Onion, cut into 1/2-inch-thick wedges
  • 1 large Yellow Onion, cut into 1/2-inch-thick wedges
  • 1/2 teaspoon Salt, plus more to taste, and 1/2 teaspoon Freshly Ground Black Pepper, plus more to taste
  • 2 tablespoons Olive Oil
  • 8 large Eggs
  • 1/2 cup Heavy Cream
  • Not found in recipe (Gruyère cheese is used instead)
  • 1 tablespoon Unsalted Butter
  • 1 tablespoon Fresh Rosemary, chopped
  • 1/2 cup Freshly Grated Gruyère Cheese

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How to Make Grilled Onion Frittata

  1. Preheat oven to 350°F (175°C).
  2. In a large bowl, combine the sliced red and yellow onions, salt, pepper, and olive oil. Toss to coat evenly.
  3. Preheat a grill pan over high heat.
  4. Arrange the onion wedges in a single layer on the hot grill pan. Cook for 5 minutes, until browned and slightly tender on the bottom.
  5. Flip the onions and cook for another 5-7 minutes, until very tender and caramelized.
  6. Transfer the grilled onions to a plate and set aside.
  7. In a separate large bowl, whisk together the eggs and heavy cream until light and frothy.
  8. Stir in the grated Gruyère cheese, salt, and pepper until well combined.
  9. In a 10-inch oven-safe skillet or braiser, melt the butter over medium-low heat. Add the chopped rosemary and cook for 1 minute, stirring constantly, until fragrant.
  10. Pour the egg mixture into the skillet. Gently fold to incorporate the rosemary.
  11. Arrange the grilled onions evenly over the top of the egg mixture.
  12. Transfer the skillet to the preheated oven and bake for 12-15 minutes, or until the frittata is set and golden brown on top and cooked through. The center should be just slightly jiggly.
  13. Let the frittata cool slightly before slicing and serving. Enjoy!

Nutrition Information (Approximate per serving)

Sodium

9 g

Sugar

8g

Fat

42g

Carbs

1g

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