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Irresistible 20-Minute Caramelized Onion and Gruyère Tartlet

caramelized onion and Gruyère tartlets
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Delicious bite-sized tartlets filled with sweet caramelized onions and creamy Gruyère cheese.

Ingredients

Scale
  • 2 large onions, thinly sliced
  • 2 tbsp butter
  • 1 tbsp olive oil
  • 1 tsp sugar
  • 1 tsp salt
  • 1 sheet puff pastry, thawed
  • 1 cup Gruyère cheese, grated
  • 1 egg, beaten
  • 1 tbsp thyme leaves

Instructions

  1. Heat butter and olive oil in a pan over medium heat.
  2. Add onions, sugar, and salt. Cook until caramelized, about 20 minutes.
  3. Preheat oven to 375°F (190°C).
  4. Roll out puff pastry and cut into small circles.
  5. Press pastry circles into a mini tart pan.
  6. Fill each tartlet with caramelized onions and Gruyère cheese.
  7. Brush edges with beaten egg.
  8. Bake for 15-20 minutes or until golden.
  9. Sprinkle with thyme before serving.

Notes

  • Use a mandoline for even onion slices.
  • Store leftovers in an airtight container.
  • Serve warm for best flavor.

Nutrition

Find it online: https://bibodo.com/caramelized-onion-gruyere-tartlets-recipe/