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Mushroom and Gruyère Tart

This savory mushroom and gruyere tart would make and easy and elegant appetizer or light meatless dinner.

Prep Time
20 mins
Cook Time
20 mins
Total Time
35 mins
Servings: 6 Servings
Course: Appetizer
Cuisine: American

Ingredients

  • 1 sheet frozen puff pastry thawed
  • 1 cup grated gruyere cheese
  • 1 tablespoon butter
  • 1 tablespoon olive oil
  • 4 ounces Shiitake mushrooms stems removed and sliced
  • 6 ounces cremini mushrooms stems removed and sliced
  • ½ onion diced
  • 4-5 garlic cloves pressed or finely chopped
  • 1 heaping tablespoon chopped fresh rosemary
  • 1 tablespoon fresh thyme leaves
  • 2 tablespoons balsamic vinegar
  • ½ cup white wine
  • 1 egg scrambled
  • salt
  • pepper

Instructions

    Cup of Yum
  1. Preheat oven to 400°F
  2. Take puff pastry out of freezer and allow to thaw while you prepare other ingredients.
  3. Heat a skillet over medium heat, add butter and olive oil. When skillet is hot and butter is melted, add the onion with a pinch of salt and sauté until onions have started to soften, about 5 minutes.
  4. Add the garlic and mushrooms with a bit more salt, cook for about a minute until the pan starts to get dry, about a minute.
  5. Add the balsamic vinegar and wine. Cook until no liquid remains, 5-7 minutes.
  6. Add the fresh herbs and cook for another 30 seconds to a minute. Remove from heat.
  7. Taste and adjust salt and pepper as needed.
  8. Roll out the puff pastry just a bit so that it is a rectangle, about 9 and ½ by 11 inches.
  9. Score a 1 inch border around the edge with a sharp knife. You want to cut almost all the way through, but not quite. Prick the inside of the border with a fork.
  10. Spread the grated cheese over the inner square of dough, trying not to go over the scored edge.
  11. Top the cheese with the mushroom mixture.
  12. Brush the border with the scrambled egg.
  13. Bake in the oven for about 15 minutes or until the crust is golden brown and puffed up.
  14. Allow to cool for 10 minutes before cutting and serving.

Notes

  • This would serve 6-8 as an appetizer and 4 as a meal.