Air Fryer Caramelized Onion and Gruyère Puff Pastry Bites

Air Fryer Caramelized Onion and Gruyère Puff Pastry Bites

Air Fryer Caramelized Onion and Gruyère Puff Pastry Bites - Impress your guests with Air Fryer Caramelized Onion and Gruyère Puff Pastry Bites. These elegant puff pastry bites are filled with caramelized onions and Gruyère cheese, air-fried until golden, and perfect for any upscale gathering.


  • 1 sheet puff pastry, thawed
  • 2 large onions, thinly sliced
  • 2 tablespoons butter
  • 1 tablespoon olive oil
  • 1/2 teaspoon sugar
  • 1 cup Gruyère cheese, shredded
  • 2 cups of crimini mushrooms chopped
  • Salt and pepper to taste
  • Fresh thyme leaves (for garnish)


  1. Caramelize the Onions:
  • In a skillet, heat butter and olive oil over medium-low heat.
  • Add thinly sliced onions and sugar. Cook, stirring occasionally, until the onions and mushrooms are golden brown and caramelized. Season with salt and pepper. Set aside to cool.
  1. Prepare Puff Pastry:
  • Roll out the thawed puff pastry sheet on a lightly floured surface.
  1. Assemble the Bites:
  • Cut the puff pastry into small squares or rectangles.
  • Place a spoonful of caramelized onions in the center of each pastry square.
  • Sprinkle Gruyère cheese over the caramelized onions.
  1. Fold and Seal:
  • Fold the pastry squares in half to create triangular or rectangular shapes.
  • Use a fork to press and seal the edges of the puff pastry.
  1. Preheat the Air Fryer:
  • Preheat your air fryer to 375°F (190°C).
  1. Air Fry the Puff Pastry Bites:
  • Place the assembled puff pastry bites in the air fryer basket, leaving space between them.
  1. Air Fry Until Golden:
  • Air fry for 8-10 minutes or until the puff pastry is golden brown and crispy.
  1. Garnish and Serve:
  • Sprinkle fresh thyme leaves over the caramelized onion and Gruyère puff pastry bites.
  1. Elegant Presentation:
  • Arrange the bites on a serving platter for an elegant presentation.
  1. Delight Your Guests:
  • Impress your guests with the delightful combination of caramelized onions and Gruyère cheese in these Air Fryer Puff Pastry Bites.

Perfect for upscale gatherings or as a sophisticated appetizer, these puff pastry b

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