Picardy‑· Rustic‑elegant · Autumn French perfection
This tart is pure French countryside elegance: buttery pastry, slow‑sautéed leeks, and nutty Gruyère melting into a silky, golden custard. It’s the kind of dish you’d find in a Picardy boulangerie — rustic yet refined, deeply aromatic, and visually stunning. The sweetness of the leeks pairs beautifully with the sharp, alpine richness of Gruyère, creating a tart that feels luxurious without being heavy. Perfect for brunch, cozy dinners or chic entertaining.
Enjoy this high fibre and protein dish that is Leek & Gruyère Tart!!
Prep 20 min Cook 40 min Serves 6
Ingredients
1 sheet butter puff pastry, thawed
3 large leeks, cleaned and thinly sliced
2 tbsp unsalted butter
1 cup Gruyère cheese, grated
3 large eggs
1 cup heavy cream
1 tsp Dijon mustard
1/2 tsp sea salt
1/4 tsp black pepper
1 tsp fresh thyme leaves
Instructions
- Prepare the pastry
Preheat oven to 375°F (190°C). Roll out puff pastry and fit into a tart pan. Dock the base with a fork and blind‑bake for 10 minutes. - Cook the leeks
In a skillet, melt butter over medium heat. Add sliced leeks and cook 8–10 minutes until soft, sweet, and wilted. Season lightly with salt. - Make the custard
Whisk eggs, cream, Dijon, salt, pepper, and thyme until smooth. Stir in half the Gruyère. - Assemble
Spread the cooked leeks evenly over the pastry base. Pour the custard over top. Sprinkle remaining Gruyère across the surface. - Bake
Bake 25–30 minutes until golden, puffed, and set in the center. - Cool & serve
Cool 10 minutes before slicing. Serve warm or room temperature.
Beauty Benefits
- Leeks: sulfur compounds support skin clarity and detox pathways.
- Gruyère: healthy fats help maintain moisture and glow.
- Eggs: vitamin A + biotin for strong hair and smooth skin.
- Herbs: antioxidants that calm inflammation and brighten complexion.
A beauty‑nutrition tart that feels indulgent but supports radiance.
Health Benefits
- High fibre from leeks for gut‑skin harmony.
- Protein from eggs + cheese for satiety and muscle support.
- Calcium‑rich Gruyère for bone health.
- Naturally low‑glycemic when paired with a salad.
Substitutions
- Gruyère → Comté (classic French swap)
- Pastry → puff pastry (lighter, flakier)
- Cream → crème fraîche (tangier, richer)
- Leeks → shallots or fennel
- Thyme → tarragon or chives
Storage
- Fridge: 3–4 days
- Reheat: low oven (300°F) for crisp pastry
- Freezer: up to 2 months (wrap tightly)
- Make‑ahead: bake fully; reheat before serving
History
Leek tarts are iconic in Northern French cooking, especially in Picardy, where leeks grow abundantly and appear in rustic dishes like Flamiche. Gruyère, though Swiss, has long been embraced in French cuisine for its perfect melting quality and nutty depth. This tart reflects the French philosophy of elevating humble vegetables through technique, cream, and cheese — transforming simplicity into elegance.
I’m Stacey Hobbs, thanks for reading Face by Stace! Until next time.
do you feel fabulous today?
