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Cheese & Caramelized Onion Quiche Recipe

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4.3 from 49 reviews

This Cheese & Caramelized Onion Quiche is a rich, savory tart featuring beautifully caramelized onions and a blend of cheeses baked in a delicate phyllo dough crust. The quiche combines a creamy, custard filling made from eggs, milk, cream, and crème fraîche, delivering a perfect balance of textures and flavors. It’s an elegant dish that can be served warm or at room temperature, ideal for brunch, lunch, or a light dinner.

Ingredients

Caramelized Onions

  • 1 large onion, chopped (about 1½ cups chopped)
  • 1 tablespoon unsalted butter or ghee
  • 1 tablespoon olive oil
  • ¼ teaspoon kosher salt

Crust

  • 8 sheets phyllo dough (9-by-13-inch sheets; if using 13-by-18-inch sheets, cut in half)
  • ¼ cup melted ghee or clarified butter

Filling

  • 6 large eggs
  • ¾ cup whole milk
  • ½ cup heavy cream
  • ½ cup crème fraîche
  • ½ teaspoon kosher salt
  • ¼ teaspoon freshly ground black pepper
  • ¼ teaspoon freshly ground nutmeg
  • 4½ oz cheese of choice, shredded (about 1½ cups shredded)

Instructions

  1. Caramelize Onions: Melt butter and olive oil in a large skillet over medium-low heat. Add chopped onions and cook, stirring occasionally, until the onions turn light golden brown, approximately 40 to 50 minutes. Adjust heat if onions brown too quickly. Once caramelized, set aside or refrigerate until ready to use.
  2. Preheat Oven and Prepare Baking Surface: Place an oven rack in the bottom third of the oven. Put a baking stone or metal baking sheet on the rack and preheat the oven to 375°F (190°C).
  3. Prepare Phyllo Crust: Lightly brush a 10-inch deep dish pie pan with melted ghee. Drape one sheet of phyllo dough into the pan and brush lightly with melted ghee, focusing on sides and edges, and a thin layer on the bottom. Keep remaining phyllo sheets covered with plastic wrap and a damp towel to prevent drying.
  4. Layer Phyllo Sheets: Repeat with remaining sheets, rotating each sheet’s angle to ensure even coverage over the entire pie pan.
  5. Finish Crust Edges: Brush the last phyllo sheet with ghee and gently fold over the edges so they align with the top rim of the pan. Brush folded edges again with ghee.
  6. Blind Bake Crust: Place a light weight, such as a 7-inch aluminum pie pan or pie weights, on the crust bottom. Bake on the preheated stone or sheet for 10 minutes until edges start to color. Remove weights and bake for an additional 2-3 minutes to dry the bottom. Let cool slightly.
  7. Reduce Oven Temperature: Lower the oven temperature to 350°F (175°C).
  8. Prepare Filling: In a blender, combine eggs, whole milk, heavy cream, and crème fraîche. Blend on low speed until smooth. Stir in salt, pepper, and nutmeg. Alternatively, whisk by hand until fully blended.
  9. Assemble Quiche: Spread caramelized onions evenly in the par-baked crust, then sprinkle about 1¼ cups of shredded cheese over the onions. Gently pour the egg mixture on top, then scatter the remaining cheese evenly over the filling.
  10. Bake Quiche: Bake for 45 to 55 minutes until the edges are browned, puffed, and the center is just slightly jiggly. Check at 30 to 40 minutes; if crust edges brown too fast, loosely cover with foil.
  11. Cool and Set: Remove the quiche from oven and place on a wire rack to cool completely to room temperature, about 1 to 2 hours. For best results, refrigerate covered for several hours or overnight to fully set before slicing.
  12. Reheat Before Serving: To serve warm, place slices on a baking sheet and bake at 350°F (175°C) for 5 to 10 minutes until heated through and crust is crispy.

Notes

  • Caramelized onions can be prepared up to several days in advance and refrigerated.
  • Keep phyllo dough covered with plastic wrap and a damp towel while working to prevent it from drying out.
  • Use a light weight for blind baking, such as a smaller pie pan, parchment with weights, or pie chains to prevent crust bubbling.
  • If the crust edges brown too quickly during baking, cover them with foil to avoid burning.
  • Allowing the quiche to set in the refrigerator before slicing improves texture and sliceability.
  • Feel free to use your preferred cheese such as Gruyère, cheddar, or Swiss for variation.

Find it online: https://justsosavory.com/cheese-and-caramelized-onion-quiche-recipe/