Adapted by JojoM

Buttery croissant pastry filled with silky vanilla flan, baked in a brioche tin for a rich French-style custard tart with crisp laminated layers.
This Vanilla Flan in Croissant Pastry Crust brings together two beloved French classics: the silky smoothness of a traditional flan pâtissier and the crisp, flaky layers of a beautifully laminated croissant dough. The result is a dessert that’s both rustic and luxurious—deeply buttery, gorgeously caramelised at the edges, and filled with a rich vanilla bean custard that sets into the perfect creamy slice.
If you love pastries with contrasting textures, this dessert is irresistible. The croissant pastry crust bakes into sturdy, golden layers that stay crisp even under the weight of the custard. Meanwhile, the vanilla flan filling stays smooth, glossy and lightly wobbly at the centre—just as a proper flan should be 💛.
Whether you’re a croissant enthusiast or a custard lover (or both!), this recipe delivers a deeply satisfying dessert that feels straight out of a French pâtisserie.
Using a 7-inch (18 cm) brioche tin helps the pastry grip the edges beautifully, giving you the classic flan look with rippled sides. Freezing the lined tin before filling ensures the layers hold their shape during baking—one of the key techniques that elevates this tart from home-style to bakery-grade.
The combination of laminated pastry + set custard creates a stunning contrast in every bite: crisp, flaky edges giving way to melting vanilla creaminess.
The recipe uses a buttery croissant dough made from a blend of high-gluten and pastry flours, enriched with honey, egg, and milk for balanced strength and tenderness. It’s laminated with 84% dry butter, ensuring clean, sharp layers that puff beautifully as they bake.
The custard is deeply aromatic thanks to a whole vanilla bean, thickened with eggs and custard powder for that classic glossy, sliceable flan texture. A touch of butter and fleur de sel rounds out the richness and highlights the vanilla.
These small steps make all the difference in achieving a pâtisserie-level result.
This flan is rich, elegant, and ideal for:
It’s also delicious chilled the next day, making it a wonderful make-ahead dessert for busy hosts.
If you’re looking for a dessert that combines French tradition, technical craft, and pure creamy comfort, this Vanilla Flan in Croissant Pastry Crust is a must-try. Every slice delivers crisp lamination, fragrant vanilla, and custard that holds beautifully without ever feeling dense.
A modern twist on a classic—rich, buttery, indulgent, and undeniably French. Bon appétit! 🇫🇷✨
Buttery croissant pastry filled with silky vanilla flan, baked in a brioche tin for a rich French-style custard tart with crisp laminated layers.

Chill the croissant dough thoroughly between folds to keep the butter layers distinct.
Freeze the lined brioche tin before filling so the pastry keeps its shape while baking.
Strain the custard base if you see any lumps before baking for an ultra-smooth texture.
Let the flan rest after baking so it sets cleanly and slices neatly.
Use a real vanilla bean for the best flavour; vanilla paste works in a pinch.
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Add the high-gluten flour, pastry flour, salt, sugar, yeast, honey, softened butter, egg, milk and water to a stand mixer.
Knead 4 minutes on low, then 6–7 minutes on medium until smooth and elastic.
Shape into a rectangle and let rest 15 minutes at room temperature.
Roll to 2 cm thick, wrap, and chill 30 minutes.
Beat the dry butter until pliable.
Roll the dough, place butter in the centre and encase fully.
Roll out and perform one double turn, then chill.
Roll out again and perform one single turn.
Roll to 4 mm thick and cut a 20 cm circle.
Place the dough circle into a 7-inch (18 cm) brioche tin.
Press gently up the sides without stretching.
Prick the base and freeze 1 hour.
Heat milk with the scraped vanilla bean until steaming.
Whisk eggs, sugar and custard powder until pale.
Remove bean pod and pour warm milk over egg mix while whisking.
Return to saucepan and cook until thickened.
Whisk in butter and fleur de sel.
Blend briefly for a smooth texture.
Pour warm custard into the frozen pastry shell, filling three-quarters full.
Freeze again for 2 hours.
Preheat oven to 180°C (360°F).
Bake about 25 minutes until set with a slight wobble.
Rest 15 minutes before unmoulding.
Unmould carefully.
Cool completely or chill for a firmer slice.
Slice and serve.
11/9/2025
A show-stopper dessert. Don’t skip the chilling steps.
8/14/2025
Used vanilla paste and it still turned out great!
6/22/2025
Rich but so elegant. Perfect for special occasions.
4/5/2025
The croissant crust with the silky vanilla flan is incredible!
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Serving Size: 1 slice (1/6 of cake)
* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
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