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Zwiebelkuchen - Onion Quiche

Onion Quiche

  • Author: Sylvie Taylor
  • Prep Time: 20 minutes
  • Cook Time: 40 minutes
  • Total Time: 1 hour
  • Yield: Serves 6
  • Category: Lunch, Main
  • Cuisine: German


Cooked onions become slightly sweet in this cheesy Onion quiche recipe that is perfect served with a side of salad or a great and easy option for a packed lunch.


200 grams / 1 1/4 cups plain flour
130 grams / 4.6 ounces butter, cold and cubed
1 egg, room temperature
28 grams / 2 tablespoons milk
1/2 teaspoon sea or kosher salt
4 onions, peeled and sliced into half moons
26 grams / 2 tablespoons olive oil
4 eggs, room temperature
60 milliliters / 1/4 cup milk
83 grams / 1 cup grated mild cheese, such as cheddar or edam



  1. Grease a quiche dish and set aside.
  2. Place the flour, butter, egg, milk and salt in a bowl and combine into pastry as quickly as possible either with a pastry beater or your hands.
  3. Once the dough is formed, shape into a ball and cover and refrigerate for 30 minutes.


  1. Meanwhile, place the olive oil in a medium skillet on medium high heat and add all the onions, cooking until browned and soft, approximately 10 minutes. Stirring every 2-3 minutes to ensure they cook evenly.
  2. Once well cooked through, remove from the heat and set aside to cool.
  3. Preheat the oven to 180°C/350F.
  4. Roll the pastry out and press evenly into your quiche dish, trimming off the excess dough from the edges and shaping to your preference.
  5. Spoon the onions into the pastry and sprinkle salt evenly over the top.
  6. Place the eggs and milk into a bowl and whisk lightly to combine, pour evenly and consistently over the top of the onions then sprinkle over the grated cheese.
  7. Bake for 40 minutes until golden on top and bubbling.
  8. Remove and allow to cool for 5 minutes.
  9. Slice and serve.


Make your pastry ahead: The pastry can be made a few days ahead and stored in the fridge.

Precook your onions: The onion can also be cooked in advance and kept covered in the fridge, however, you will want this to be room temperature when adding as a filling.

Add herbs: Some dried or fresh rosemary or thyme would make a great compliment to the sweet onion.

Recipe by Roamingtaste (via my lovely mother Gabriela)


  • Calories: 481 calories per serve

Keywords: quiche, german baking