Ingredients with Measurements:
- 1 sheet of puff pastry, thawed
- 2 tablespoons of olive oil
- 2 large onions, thinly sliced
- 1 tablespoon of brown sugar
- 1/4 teaspoon of salt
- 1/4 teaspoon of black pepper
- 1/4 teaspoon of dried thyme
- 1/4 teaspoon of dried rosemary
- 1/2 cup of Kornigou cheese, crumbled
- 1/2 cup of Gruyere cheese, shredded
- 1 egg, beaten
Special equipment needed:
- Rolling pin
- Baking sheet
- Parchment paper
Step-by-step instructions:
1. Preheat the oven to 400°F (200°C).
2. In a large skillet, heat the olive oil over medium heat. Add the onions and cook for 10-15 minutes, stirring occasionally, until they are soft and golden brown.
3. Add the brown sugar, salt, black pepper, thyme, and rosemary to the skillet. Stir well and cook for an additional 5 minutes until the onions are caramelized. Remove from heat and let cool.
4. On a lightly floured surface, roll out the puff pastry into a rectangle shape. Place it on a baking sheet lined with parchment paper.
5. Spread the caramelized onions evenly over the puff pastry, leaving a 1-inch border around the edges.
6. Sprinkle the Kornigou and Gruyere cheese over the onions.
7. Brush the beaten egg over the edges of the puff pastry.
8. Bake the tart for 20-25 minutes, or until the pastry is golden brown and the cheese is melted and bubbly.
9. Let the tart cool for a few minutes before slicing and serving.
Time:
Preparation time: 15 minutes
Cooking time: 35 minutes
Temperature:
Preheat oven to 400°F (200°C)
Serving size:
6-8 servings
Nutritional information:
Calories: 320
Fat: 22g
Carbohydrates: 21g
Protein: 9g
Sodium: 260mg
Substitutions for ingredients:
- Puff pastry can be substituted with pie crust or phyllo dough.
- Kornigou cheese can be substituted with feta cheese or goat cheese.
- Gruyere cheese can be substituted with Swiss cheese or cheddar cheese.
Variations:
- Add sliced mushrooms or chopped bacon to the caramelized onions for extra flavor.
- Top the tart with fresh herbs like parsley or chives before serving.
- Use different types of cheese for a different flavor profile.
Tips and tricks:
- Make sure the puff pastry is thawed before using it.
- Use a sharp knife to slice the tart for a clean cut.
- Serve the tart warm or at room temperature.
Storage instructions:
- Store leftover tart in an airtight container in the refrigerator for up to 3 days.
Reheating instructions:
- To reheat the tart, place it in a preheated oven at 350°F (175°C) for 10-15 minutes until warmed through.
Presentation ideas:
- Serve the tart on a platter with fresh herbs and sliced tomatoes for a colorful presentation.
Garnishes:
- Fresh herbs like parsley or chives.
Pairings:
- Serve with a side salad or roasted vegetables.
Suggested side dishes:
- Mixed greens salad with vinaigrette dressing.
- Roasted asparagus or Brussels sprouts.
Troubleshooting advice:
- If the pastry is not cooked through, bake for an additional 5-10 minutes until golden brown.
Food safety advice:
- Make sure to cook the onions until they are caramelized to avoid any raw onion taste.
Food history:
- The use of puff pastry in cooking dates back to ancient Greece and Rome.
Flavor profiles:
- The tart has a savory and slightly sweet flavor from the caramelized onions and a nutty flavor from the Gruyere cheese.
Serving suggestions:
- Serve the tart as an appetizer or as a main dish with a side salad or roasted vegetables.
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Region: French