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–+ servings

French Onion Mushroom Tart

A savory tart featuring caramelized onions and mushrooms, topped with a rich cheese blend, perfect for a sophisticated appetizer or light meal.
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Prep Time 20 minutes
Cook Time 40 minutes
Total Time 1 hour
Servings: 4 servings
Course: Appetizer, main
Cuisine: French
Calories: 320
Ingredients Method Nutrition Notes

Ingredients
  

Tart Crust
  • 1 cup all-purpose flour plus extra for dusting
  • 1/2 cup unsalted butter cold and cubed
  • 1/4 cup cold water
Filling
  • 2 large yellow onions thinly sliced
  • 8 ounces cremini mushrooms sliced
  • 2 tablespoons olive oil
  • 1 teaspoon salt
  • 1/2 teaspoon black pepper
  • 1 cup gruyère cheese shredded
  • 1 cup ricotta cheese
  • 2 large eggs
  • 1 tablespoon fresh thyme chopped

Method
 

Prepare the Tart Crust
  1. In a mixing bowl, combine flour and salt. Add cold butter and mix until crumbly. Gradually add cold water until dough forms.
  2. Wrap the dough in plastic wrap and refrigerate for 30 minutes.
Cook the Filling
  1. In a skillet, heat olive oil over medium heat. Add onions and cook until caramelized, about 15 minutes.
  2. Add mushrooms, salt, and pepper, and cook until mushrooms are tender, about 10 minutes. Remove from heat and let cool.
Assemble the Tart
  1. Preheat the oven to 375°F (190°C). Roll out the chilled dough and fit it into a tart pan.
  2. In a bowl, mix together gruyère, ricotta, eggs, and thyme. Stir in the cooled onion and mushroom mixture.
  3. Pour the filling into the prepared crust and smooth the top.
Bake the Tart
  1. Bake in the preheated oven for 25-30 minutes, or until the filling is set and the top is golden brown.
  2. Let cool for 10 minutes before slicing and serving.

Nutrition

Serving: 1servingCalories: 320kcalCarbohydrates: 30gProtein: 10gFat: 18gSaturated Fat: 10gFiber: 2gSugar: 3g

Notes

Serve warm or at room temperature. Pairs well with a simple green salad.

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