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Caramelized Onion and Goat Cheese Tarts

Savory puff pastry tarts topped with slow-cooked sweet caramelized onions, tangy goat cheese, and fresh thyme. The perfect elegant appetizer or light lunch.
Print Recipe
Prep Time 45 minutes
Cook Time 20 minutes
Total Time 1 hour 5 minutes
Servings: 6 tarts
Course: Appetizer, Lunch
Cuisine: French, Vegetarian
Calories: 310
Ingredients Equipment Method Notes

Ingredients
  

The Tarts
  • 1 package puff pastry thawed (2 sheets)
  • 3 large yellow onions thinly sliced
  • 2 tbsp unsalted butter
  • 1 tbsp olive oil
  • 1 tbsp balsamic vinegar
  • 1 tsp brown sugar optional
  • 5 oz goat cheese crumbled
  • 1 tbsp fresh thyme plus more for garnish
  • 1 egg beaten with 1 tbsp water (for wash)
  • 1 pinch salt and pepper to taste

Equipment

  • Large skillet
  • Baking sheets
  • Parchment paper
  • Sharp knife or pizza cutter

Method
 

  1. Melt butter and olive oil in a large skillet over medium heat. Add sliced onions and toss to coat.
  2. Cook onions for 5-10 minutes until softened, then reduce heat to medium-low. Cook for 30-40 minutes, stirring occasionally, until deep golden brown and caramelized.
  3. Stir in brown sugar, balsamic vinegar, thyme, salt, and pepper. Cook for 2 more minutes. Remove from heat and cool slightly.
  4. Preheat oven to 400°F (200°C). Line baking sheets with parchment paper.
  5. Unfold puff pastry and cut into squares. Score a border 1/2 inch from the edge and dock the center with a fork.
  6. Brush the borders with egg wash.
  7. Place a spoonful of onions in the center of each square, spreading to the border. Top with crumbled goat cheese.
  8. Bake for 15-20 minutes until pastry is puffed and golden. Garnish with fresh thyme and serve.

Notes

Ensure puff pastry is cold before baking to ensure maximum rise.