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Caramelized Onion and Goat Cheese Tarts

Savory puff pastry tarts topped with slow-cooked balsamic caramelized onions and tangy goat cheese. A perfect elegant appetizer or light lunch.
Print Recipe
Prep Time 20 minutes
Cook Time 45 minutes
Total Time 1 hour 5 minutes
Servings: 4 tarts
Course: Appetizer, Lunch
Cuisine: French, Vegetarian
Calories: 380
Ingredients Equipment Method Notes

Ingredients
  

Caramelized Onions
  • 3 large onions (red or yellow) thinly sliced
  • 2 tbsp unsalted butter
  • 1 tbsp olive oil
  • 1 tbsp balsamic vinegar
  • 1 tsp brown sugar optional
  • 0.5 tsp salt
Assembly
  • 1 sheet puff pastry thawed
  • 4 oz goat cheese crumbled
  • 1 large egg beaten with 1 tsp water
  • 2 tbsp balsamic glaze for serving
  • 4-5 sprigs fresh thyme for garnish

Equipment

  • Baking sheet
  • Large Skillet
  • Parchment paper
  • Chef's knife

Method
 

  1. Heat butter and oil in a large skillet over medium heat. Add sliced onions and cook for 5 minutes until soft.
  2. Reduce heat to medium-low. Add salt and brown sugar. Cook for 30-40 minutes, stirring occasionally, until deep golden brown.
  3. Stir in balsamic vinegar and cook for 2 minutes to deglaze. Remove from heat and cool slightly.
  4. Preheat oven to 400°F (200°C). Line a baking sheet with parchment paper.
  5. Unfold puff pastry and cut into 4-6 equal squares. Score a border 1/2 inch from the edge and prick the center with a fork.
  6. Place pastry on baking sheet. Spoon onions into the center and top with crumbled goat cheese.
  7. Brush the pastry borders with the egg wash.
  8. Bake for 18-22 minutes until pastry is puffed and golden brown.
  9. Drizzle generously with balsamic glaze and garnish with fresh thyme before serving.

Notes

Ensure puff pastry stays cold before baking to ensure maximum puff.