Caramelized Onion Tarts with Apples

Ingredients

• 2 tablespoons olive oil
• 2 medium onions, sliced
• 2 red apples (such as Braeburn or Gala), cut into small pieces
• kosher salt and black pepper
• 2 sheets frozen puff pastry (from a 17.3-ounce package), thawed
• 1/2 cup creme fraiche or sour cream

Directions

1. Heat oven to 400º F. Heat the oil in a large skillet over medium heat. Add the onions and cook, stirring occasionally, until soft and golden brown, 12 to 15 minutes. Stir in the apples, ½ teaspoon salt, and ¼ teaspoon pepper and cook until just tender, 2 minutes.
2. Place each sheet of pastry on a parchment-lined baking sheet and prick all over with a fork. Spread with the crème fraîche, leaving a ½-inch border. Top with the onion mixture and bake until the pastry is crisp and browned, 30 to 35 minutes. Cut into pieces before serving.

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