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Caramelized Onion and Goat Cheese Tarts in 3 Easy Steps Recipe

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4.9 from 29 reviews

These irresistible caramelized onion and goat cheese tarts combine sweet, jammy onions with tangy goat cheese atop flaky puff pastry, creating a perfect appetizer or snack that is simple to make and full of flavor.

Ingredients

For the Tarts

  • 1 sheet puff pastry (thawed but still cold)
  • 2 large onions, thinly sliced (yellow or sweet)
  • 2 tablespoon olive oil
  • 1 tablespoon butter
  • 1 teaspoon sugar
  • 1 teaspoon balsamic vinegar
  • 4 oz goat cheese, crumbled
  • 1 teaspoon fresh thyme leaves
  • Salt and pepper to taste

Instructions

  1. Caramelize the Onions: Heat olive oil and butter in a large pan over medium heat. Add thinly sliced onions, sugar, salt, and pepper. Cook undisturbed for 5 minutes between occasional stirs. After 15 minutes, onions will turn golden. Stir in balsamic vinegar and thyme, cook for another 5 minutes until onions are jammy and sweet. Add a splash of water if onions begin sticking to deglaze the pan.
  2. Assemble the Tarts: Roll out the puff pastry on a lightly floured surface and cut into 6 rectangles. Evenly spread the caramelized onions over each piece, leaving a small border. Crumble goat cheese generously over the onions and sprinkle additional thyme on top.
  3. Bake to Perfection: Preheat oven to 400°F. Bake the assembled tarts for 15 minutes or until pastry is golden brown and puffed, and cheese is melted with browned spots. Check every 2 minutes if needing extra time to avoid burning. Cool slightly before serving.

Notes

  • Pat caramelized onions dry with paper towels to avoid soggy pastry.
  • Chill assembled tarts in fridge for 10 minutes before baking for flakier layers.
  • Use fresh thyme for best flavor, or rub dried thyme between fingers if using dried.
  • Spread onions to edges of pastry to maximize flavor in every bite.