Caramelized Onion Quiche Recipe: Sunday Brunch Just Got Fabulous by 30Seconds Food

Caramelized Onion Quiche Recipe: Sunday Brunch Just Got Fabulous

Ready to brunch this weekend? This creamy caramelized onion quiche recipe is easy to make and is a fabulous recipe for Sunday brunch (or Saturday!). The quiche does require a little patience when cooking the onions, but it is well worth it. Have a glass a wine, bloody mary or a mimosa while they cook!

The onions are caramelized in butter and olive oil, then thickened up with a little flour. The whole caramelization process should take 30 to 40 minutes. The quiche filling – eggs, heavy whipping cream, dried time and gruyere cheese – is stirred together and poured into a baked pie crust. Bake for about 20 to 30 minutes or until the eggs are set, and brunch, breakfast or dinner is done.

If serving for brunch or breakfast, add a side of fresh fruit. For dinner, add a fresh salad

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Cuisine: French
Prep Time: 10 minutes
Cook Time: 1 hour and 10 minutes
Total Time: 1 hour and 20 minutes
Servings: 4


  • 1 refrigerated pie crust, thawed


  • 3 large onions (about 2 pounds), sliced
  • 2 tablespoons butter
  • 1 tablespoon olive oil
  • 1 tablespoon flour


  • 3 eggs
  • 3/4 cup heavy whipping cream
  • 1/4 teaspoon dried thyme
  • 3/4 cup grated gruyere cheese

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Recipe Notes

  • You could use fontina, asiago, Monterey Jack, mozzarella, white cheddar or your favorite cheese in place of gruyere.
  • For some crunch, top the quiche with some french fried onions.

Here's how to make it:

  1. Melt the butter and olive oil together in a large skillet. Add the onions. Cook over low heat until they're browned, soft and caramelized, about 30 to 40 minutes. When done, sprinkle in the flour and season with salt and pepper, to taste. Cook another 2 minutes. Remove from heat and cool. 
  2. Press the pie crust into a pie plate or round baking dish. Prick the bottom with a fork. Bake according to package directions.
  3. While the crust bakes, beat the eggs and cream together. Add about one-third of the cheese, thyme, and salt and pepper. Add the caramelized onions. Pour the mixture into the crust. Sprinkle with the remaining cheese. Bake in a preheated 425-degree F oven for 20 to 30 minutes. 

Nutrition Facts Per Serving

Calories: 568

Total Fat: 53.1g

Saturated Fat: 19g

Cholesterol: 349mg

Sodium: 220mg

Total Carbohydrate: 9.5g

Dietary Fiber: 1.2g

Total Sugars: 2.9g

Protein: 16.9g

Vitamin D: 38mcg

Calcium: 274mg

Iron: 2mg

Potassium: 213mg

Recipe cooking times, nutritional information and servings are approximate and provided for your convenience. However, 30Seconds is not responsible for the outcome of any recipe, nor may you have the same results because of variations in ingredients, temperatures, altitude, errors, omissions or cooking/baking abilities. This recipe has been analyzed by VeryWellFit. However, any nutritional information is provided as a courtesy and it is up to the individual to ascertain accuracy. To ensure image quality, we may occasionally use stock photography.

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Donna John
OMG. This looks like something I need to eat ASAP. And you don't have to twist my arm about sipping on wine while the onions cook.
Quiche me, please, wow!

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