01 -
Turn your oven to 375°F (190°C) and let it preheat. Place some parchment paper on a tray to get ready.
02 -
Melt butter with olive oil in a pan. Add shallots and stir them until they soften (2-3 minutes). Toss in garlic and saute it briefly. Pour in the mushrooms, cook them down until they're dry and tender (5-7 minutes), and add seasoning. Let it cool down afterward.
03 -
Roll out the puff pastry to make it thinner on a floured counter. Cut the pastry into pieces—you can decide if you'd like squares or rectangles.
04 -
Spoon some of the mushroom mixture onto each pastry piece. Layer the goat cheese on top generously.
05 -
Bend the pastry edges inward to create tarts with a rustic look. Brush the egg wash over the top edges to make them shiny and golden.
06 -
Bake them for 20 to 25 minutes on the center rack until you see them puff up and turn nicely golden.
07 -
Dust the tarts with thyme leaves once they come out, and wait a couple of minutes before serving.