Cook the mushrooms dry before they touch the pastry, or their water leaves the base soggy and pale. Score a border and dock the center so the edges puff while the middle stays flat for the filling. Bake it hot at 400F until the pastry is deep gold and cooked through underneath.
By Vince Gonzalez · Published July 2026 · Sourcing verified 5 Jul 2026
Prep20 min
Cook25 min
Makes6 servings
CuisineFrench
Cost$$
Vegetarian
Contains dairy · eggs · gluten
Make it vegan: use plant milk, oil, or a vegan cheese for the dairy, and a flax or aquafaba egg for the egg.
Make it gluten-free: swap in gluten-free versions of the wheat items (check the other labels too).
The Ingredients — and where to get them
Cook for6servings
Puff pastry
An all-butter sheet, kept cold, for a tart that puffs and shatters.
A reasonable little indulgence. · plan ahead — needs marinating, soaking, or resting time
EffortSome doing
Cook it with
Air fryerSheet pan
The Method
Score and dockScore a half-inch border around the cold pastry and prick the center all over with a fork. This lets the edge rise while the middle holds the filling.
Cook the mushrooms drySear the torn mushrooms until browned and no liquid is left in the pan. Wet mushrooms are why most tarts go soggy.
AssembleSpread creme fraiche inside the border, scatter half the gruyere, then the mushrooms, thyme, and the rest of the cheese. Brush the border with egg wash.
Bake hotBake at 400F for 22 to 25 minutes until the pastry is deep gold and crisp underneath. Lift an edge to check the base is cooked.
Can you make Wild Mushroom Tart in an air fryer? — Yes
Yes — bake it in a small pan or dish that fits the basket, at about 25°F below the recipe temperature. Air fryers run hot and fast, so check it early; no flipping needed.
Can you freeze Wild Mushroom Tart? — Yes
Yes — freeze it well-wrapped, then reheat or toast straight from frozen. Frost or glaze after thawing.
Can you make Wild Mushroom Tart ahead of time? — Yes
Yes — bake it a day or two ahead; it keeps well-wrapped at room temperature and freezes cleanly. Add any frosting or glaze close to serving.
Is Wild Mushroom Tart gluten-free? — Not as written
Not as written — it contains gluten. Make it gluten-free: swap in gluten-free versions of the wheat items (check the other labels too).
Is Wild Mushroom Tart vegan? — Vegetarian, not vegan
It’s vegetarian but not vegan as written — it has dairy and egg. Make it vegan: use plant milk, oil, or a vegan cheese for the dairy, and a flax or aquafaba egg for the egg.
Community Notes
Cooked it? Changed something that worked? Leave a note for the next person — first-name basis, no account.
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