Caramelized onions, mushrooms and gruyere tartlets

Caramelized onions, mushrooms and gruyere tartlets

europeanmushrooms.eu

60 minutes Budget Vegetarian Recipe Step 1. Preheat the oven to 200°c. Line two baking trays with baking or parchment paper. Step 2.

View full recipe on europeanmushrooms.eu

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Cooking tools:

  • Cookie cutter
  • Pastry brush
  • Oven
  • Stove
  • Skillet
  • Baking sheet
  • Parchment paper
  • Chef's knife
  • Cutting board
  • Spoon
  • Mixing bowl
  • Fork

Ingredients

  • 2 tsp of olive oil
  • 1 large yellow onion, thinly sliced
  • 1 tsp of unsalted butter
  • 200g of white button mushrooms, sliced
  • 2 sheets puff pastry, thawed
  • 130g shredded Gruyere cheese
  • 1 egg, beaten
  • 1 tsp chopped fresh thyme leaves
  • ½ tsp of dried rosemary
  • Salt
  • pepper

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