Go Back
–+ servings
Caramelized Onion & Mushroom Tart

Caramelized Onion & Mushroom Tart: A Easy Gourmet Delight

Caramelized Onion & Mushroom Tart is an easy and elegant dish blending savory flavors perfect for any occasion.
Print Recipe Pin Recipe
Prep Time 15 minutes
Cook Time 50 minutes
Cooling Time 10 minutes
Total Time 1 hour 15 minutes
Servings: 6 slices
Course: Baking
Cuisine: French
Calories: 250
Ingredients Equipment Method Nutrition Notes

Ingredients
  

For the Tart Base
  • 1 package Frozen Puff Pastry Ensure fully thawed but cold for best results.
For the Filling
  • 2 large Yellow Onions Develops a rich sweetness through slow caramelization.
  • 8 ounces Cremini Mushrooms Slice thinly for even cooking.
  • 2 tablespoons Olive Oil Essential for sautéing.
  • to taste Salt Enhances overall taste.
  • to taste Black Pepper Enhances overall taste.
  • 4 ounces Goat Cheese or Feta Adds creaminess; dairy-free alternatives available.
  • 1 large Whisked Egg Creates a beautiful golden-brown finish.
For Garnish
  • 1 tablespoon Fresh Thyme Adds a fragrant herbal note.

Equipment

  • Skillet
  • Baking Sheet
  • Parchment paper
  • fork
  • Oven

Method
 

Making the Tart
  1. Preheat the oven to 400°F (200°C).
  2. Line a baking sheet with parchment paper.
  3. Cook sliced onions in a skillet with olive oil over medium-low heat and add salt. Allow them to caramelize for 25-30 minutes.
  4. Sauté sliced cremini mushrooms in the same skillet until golden and evaporated, about 8-10 minutes.
  5. Prepare puff pastry by unrolling it and scoring a 1-inch border around the edge.
  6. Spread goat cheese over the docked area of the pastry, followed by caramelized onions and sautéed mushrooms.
  7. Brush the pastry border with whisked egg.
  8. Bake for 20 minutes at 400°F (200°C), then reduce to 375°F (190°C) and bake for an additional 15-20 minutes.
  9. Cool slightly before garnishing with fresh thyme.

Nutrition

Serving: 1sliceCalories: 250kcalCarbohydrates: 20gProtein: 8gFat: 16gSaturated Fat: 8gPolyunsaturated Fat: 1gMonounsaturated Fat: 7gCholesterol: 50mgSodium: 350mgPotassium: 250mgFiber: 2gSugar: 4gVitamin A: 500IUVitamin C: 2mgCalcium: 150mgIron: 2mg

Notes

Optional: Drizzle with balsamic reduction for extra flavor. Store leftovers in an airtight container for 3-4 days or freeze for up to 2 months.

Tried this recipe?

Let us know how it was!