A savory tart for mushroom lovers! Loaded with mushrooms on a cheesy puff pastry base, it’s perfect for entertaining.
Preheat Oven:
Preheat to 200°C (400°F).
Cook Mushrooms:
In a skillet, heat butter and olive oil over medium heat. Add mushrooms and thyme; sauté 8-10 minutes until golden. Remove thyme sprigs if using fresh.
Prepare Pastry:
Roll out puff pastry to fit a 25x35 cm (10x14 inch) baking tray. Place on a parchment-lined tray. Score a 1 cm (½ inch) border; prick the center with a fork.
Add Cheese:
Sprinkle all the Gruyere cheese evenly over the center of the pastry.
Add Mushrooms:
Spread the sautéed mushrooms over the cheese.
Egg Wash:
Brush the pastry edges with beaten egg for a golden finish.
Bake:
Bake 15-20 minutes, until pastry is golden and puffed.
Serve:
Cool slightly, slice, and serve warm.