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Morel Mushroom Quiche with Caramelized Red Onions

Morel Mushroom Quiche with Caramelized Red Onions
Morel Mushroom Quiche with Caramelized Red Onions. Photo: Helena Kirk

Morel Mushroom Quiche with Caramelized Red Onions is a delicate spring recipe. Follow the simple crust recipe below or use a premade pie crust. The filling consists of fresh morel mushrooms, thyme, garlic, caramelized red onions, and a mix of eggs, sour cream, and full cream milk. Serve this delicious Morel Mushroom Quiche with a fresh salad for dinner, or bring it cold in your packed lunch.

Morel mushrooms have a meaty texture and are packed with umami flavor. As for the nutritional value of the mushrooms, it is very positive that they have a low content of fat and carbohydrate and thus a relatively high content of proteins and contain many vitamins and minerals. If you don’t have fresh morel mushrooms, dried morels are just as good! Just remember to soak them in water before use.

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Morel Mushroom Quiche with Caramelized Red Onions

Prep Time 40 mins
Cook Time 40 mins
Total Time 1 hr 20 mins
Course Main Course
Servings 1 quiche


Quiche Crust

  • cups (210 grams) all-purpose flour
  • ½ teaspoon salt
  • 1/2 cup (100 grams) melted butter
  • 8 tablespoons cold water


  • 9 oz (250 grams) fresh morel mushrooms, brushed clean and sliced
  • 5 sprigs thyme
  • 1 clove garlic, finely chopped
  • 1/4 + 1/8 cups (50 + 25 grams) butter
  • 3 red onions, halved and sliced
  • 1.5 tablespoons apple cider vinegar
  • 1 tablespoon sugar
  • 4 large eggs
  • cups (3 dl) sour cream
  • cup (1 dl) full cream milk
  • 1.5 teaspoon salt
  • Freshly ground pepper


Quiche Crust

  • In a large bowl, mix all-purpose flour and salt.
  • Melt butter and pour it into the bowl together with water.
  • Mix all ingredients and knead the dough well. Let it rest in the fridge for 15-30 minutes.
  • Meanwhile, preheat the oven to 390 degrees Fahrenheit (200 degrees Celsius).
  • Roll out the quiche crust to fit the approximate measurements of your quiche pan. Place the crust on top of the quiche pan and with your hands, lightly press it into place. 
  • Dock the chilled quiche crust all over with a fork to prevent the pastry from puffing up.
  • Prebake the quiche crust for 10-12 minutes. Remove from the oven and leave to cool.
  • Reduce the oven temperature to 350 degrees Fahrenheit (175 degrees Celsius).


  • In a frying pan over medium heat melt 1/4 cup (50 grams) of butter.
  • Add the morel mushrooms, garlic, and sprigs of thyme. Sauté over low heat for 10 minutes.
  • Remove the sprigs of thyme and season with salt and pepper and set aside.
  • On another frying pan over medium heat, melt 1/8 cup (25 grams) of butter. Add red onions, apple cider vinegar, and sugar and let it cook for 10 minutes, stirring occasionally.
  • Spread the caramelized red onions and the morels over the base of the quiche crust.
  • Break 4 large eggs into a large mixing bowl, add sour cream, full cream milk, salt, and pepper, and whisk well.
  • Carefully pour the egg and sour cream mixture over the caramelized red onions and morels.
  • Bake the quiche at 350 degrees Fahrenheit (175 degrees Celsius) for about 40 minutes.
  • Serve with a fresh salad.
Keyword morel mushrooms, quiche, spring
Morel mushroom and caramelized red onion quiche

Are you looking for other morel mushroom recipes? Take a look at this Classic morel mushroom sauce or try making these White asparagus with creamy morel mushrooms.

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