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a slice of gluten free mushroom quiche

No Cheese Gluten Free Mushroom Quiche With Caramelized Onions

By Rommel@Bakefree
Indulge in the rich, savory taste of a dairy and gluten free vegetarian quiche that combines the rich umami of mushrooms with sweet caramelized onions in a flaky gluten free pate brisee crust.
Note: Use the unit converter if needed. This recipe is measured by weight (metric) for accuracy.
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Prep Time 30 minutes
Cook Time 1 hour 30 minutes
Waiting Time 1 hour
Course savory
Cuisine French
Servings 10

Equipment

Ingredients
 
 

Gluten Free Pate Brisee

Quiche Filling

Instructions
 

Gluten Free Pate Brisee or Shortcrust Dough

  • Cream the cold butter cubes, salt, sugar, and eggs on a cold surface using your fingers until the mixture resembles crumbs.
  • Incorporate the cold water and continue mixing until the dough forms a ball. Wrap the dough with cling film and refrigerate for one hour.
  • For a detailed guide, refer to the Gluten Free Pate Brisee recipe.

Quiche Filling and Baking

  • Caramelize the onions by sautéing them until golden brown. In the same pan, sauté the mushrooms until golden and all liquid evaporates. Season with salt and pepper. Set aside.
  • Combine eggs, dairy free cooking cream, salt, nutmeg, and pepper in a bowl, whisking thoroughly. Spread the sauteed mushroom and onion evenly over the pre-baked crust, then pour the egg mixture on top.
  • For a large, thick quiche (20 x 5 cm or 8 x 2 in), bake at 145°C (293°F) for 25 minutes, then adjust the temperature to 170°C (338°F) and continue baking for another 15 minutes.
  • For thinner quiche, bake at 170°C (338°F) for 35 to 40 minutes.
  • Let the quiche cool for 15-30 minutes before slicing.

Notes

Printed Recipe Note: For detailed illustrated process steps, access the recipe online version
  • Keep all ingredients as cold as possible during dough-making for a flakier crust.
  • Blind bake the crust for 20 minutes before adding the filling to prevent sogginess.
  • Do not overcook the quiche. The filling should still jiggle a bit when you shake it. 
  • Try adding different herbs, such as thyme or rosemary, to the mushroom and onion mixture for added flavor.
  • Allow the quiche to rest for at least 20 minutes before cutting to ensure the filling sets properly.
Keyword gluten free dairy free quiche, gluten free dairy free tart crust, gluten free mushroom quiche
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