Mushroom Tartlets
Flaky puff pastry tartlets topped with caramelized onions, earthy mushrooms, and nutty Grand Cru cheese for an elegant yet simple appetizer or light meal.
- Prep Time: 20 minutes
- Cook Time: 15–20 minutes
- Total Time: 35–40 minutes
- Yield: 6–8 tartlets
- Category: Appetizer
- Method: Baking
- Cuisine: French-Inspired
- Diet: Vegetarian
Ingredients
1 sheet puff pastry, thawed
2 large onions, chopped
2 tablespoons olive oil
1/4 teaspoon salt
1 teaspoon dark brown sugar
8 ounces mushrooms, thinly sliced
2 garlic cloves, pressed
2 tablespoons dried thyme (or 2 teaspoons fresh thyme)
1 egg + 1 tablespoon water, beaten together (egg wash)
3/4 cup Roth Grand Cru cheese, shredded (or Gruyère substitute)
Instructions
- Preheat oven to 400°F (200°C). Heat olive oil in a skillet over medium heat and sauté onions with salt until softened.
- Stir in brown sugar and cook 15–20 minutes until onions are golden and caramelized.
- Add mushrooms and garlic; cook until mushrooms release liquid and reduce. Stir in thyme.
- Roll out puff pastry and cut into 6–8 squares or circles. Place on parchment-lined baking sheet.
- Spoon onion-mushroom mixture onto pastry, leaving a border. Sprinkle with Grand Cru cheese.
- Brush pastry edges with egg wash. Bake 15–20 minutes until puffed and golden.
- Cool a few minutes before serving.
Notes
Swap cheese with Gruyère, fontina, or sharp cheddar.
Add rosemary, sage, or balsamic vinegar for extra depth.
Top with a drizzle of truffle oil for indulgence.
Make one large tart instead of individual tartlets if desired.
Best reheated in oven to maintain crispiness.
Nutrition
- Serving Size: 1 tartlet
- Calories: 230
- Sugar: 5g
- Sodium: 260mg
- Fat: 14g
- Saturated Fat: 6g
- Unsaturated Fat: 7g
- Trans Fat: 0g
- Carbohydrates: 20g
- Fiber: 2g
- Protein: 7g
- Cholesterol: 35mg
Find it online: https://justsosavory.com/mushroom-tartlets/
