Flan pâtissier, often called Parisian custard tart, is one of the most beloved desserts in French bakeries – simple yet elegant, creamy yet light. With its silky vanilla custard baked into a buttery pastry crust, this classic treat embodies the understated charm of French pâtisserie. It’s not overly sweet or heavy, which makes it perfect as a dessert after dinner, a sweet afternoon snack, or even a breakfast indulgence with coffee.
At its core, flan pâtissier is made with a rich, egg-based custard gently infused with vanilla. The custard is poured into a crisp, buttery shortcrust pastry shell and baked until it sets into a smooth, creamy filling with a slightly caramelized surface. The result is a dessert that’s both comforting and sophisticated, with a texture that’s firm enough to slice but melts beautifully on the tongue. The balance of flavors, delicate vanilla, creamy custard, and flaky pastry, is pure perfection.
What makes this French tart truly special is its versatility. While the traditional version keeps things simple, you can also flavor the custard with a hint of citrus zest, a splash of rum, or a touch of almond extract for a subtle twist. Some bakers top it with a thin layer of powdered sugar or serve it with seasonal fruit, but it’s just as delicious enjoyed plain and chilled straight from the fridge.
Flan pâtissier is also a fantastic make-ahead dessert. It keeps well for several days, and its flavor deepens as it rests, making it ideal for preparing in advance for gatherings or celebrations. It’s a timeless recipe that brings a taste of classic French baking into your home with minimal fuss and maximum reward.
Elegant yet comforting, flan pâtissier is proof that the simplest desserts often leave the most lasting impression. One slice is never enough, and once you’ve tasted it fresh from your own oven, you’ll understand why this custard tart is a staple of French patisserie windows.

Ingredients
- 1 sheet puff pastry large enough to fit a 9-inch pie dish
- 500 ml whole milk or 2% milk
- 125 g granulated sugar
- 1 tbsp vanilla extract
- 4 large eggs room temperature
- 50 g cornstarch sifted
- 20 g unsalted butter cut into small cubes
Instructions
- Preheat the oven to 180°C (350°F).
- Line a 9-inch pie dish with the puff pastry, trimming any excess.
- In a saucepan, heat the milk over medium heat until it just begins to simmer. Remove from heat.
- In a bowl, whisk together the sugar, eggs, vanilla extract, and cornstarch until smooth.
- Gradually pour the hot milk into the egg mixture, whisking constantly to prevent curdling.
- Pour the mixture back into the saucepan and cook over medium heat, stirring continuously, until thickened.
- Remove from heat and stir in the butter until fully melted and incorporated.
- Pour the custard into the prepared pie dish and smooth the top.
- Bake in the preheated oven for 40-50 minutes, or until the top is set and lightly browned.
- Allow to cool at room temperature before refrigerating for at least 2 hours before serving.
Nutrition










Easy to make, but I feel like it needs more flavor. Maybe lemon zest next time?
Ugh, I burnt mine. How the heck did you people get it to look so nice?!
What’s a flan? I thought it was like pizza. 🤔
Looks easy, but I feel like I need a degree just to make this.
I don’t know why mine turned out so runny. Followed the recipe exactly…
Too sweet for my taste, but my kids loved it. Not making again for me though.
This flan was AMAZING! So creamy and delicious, my family loved it!
Really? I tried making flan once and it turned out like scrambled eggs. I don’t get how you made it so creamy.
I’m so glad to hear you loved it! Flan is the best dessert ever! It makes me so happy when family enjoys what I cook.
I didn’t have cornstarch, so I used flour… did not work out. Can’t believe I messed it up.
I don’t even like milk, but this recipe was surprisingly good! Can’t believe I ate the whole thing.
Wow, that’s impressive! I always thought flan was just for milk lovers. Maybe I should give it a try!
Flan is life!!! A must-try recipe! 🌟
Made this for a potluck and it was the first thing gone! Hit of the party!
Easy to follow instructions! I made it for my mom’s birthday and she loved it. Thanks!
Never made flan before, but followed the instructions and it was a hit! 😍
That’s awesome! Flan can be tricky, glad it turned out well for you! 😄
Never tried making it, but I heard it’s hard. You must be a natural! 😮
This flan is so creamy and rich! My family loved it! Will make again for sure!
I totally agree! This flan is just the best! I made it last week and the kids couldn’t get enough.
Flan should be softer! Mine came out too thick and taste was off. Should’ve added more milk or something.
Too many steps! I just want a quick dessert, not a science experiment.
I get what you’re saying! But some desserts are worth the effort, right? Flan is super delicious! 😋
Science experiment? It’s just cooking! Follow the steps, it’s easy! Plus, flan is so yummy once you get it right.
I’m not sure about this recipe. Why do you need so many eggs? Seems like a food waste to me.
Yummy but it took forever to cool down, what’s up with that?
Super easy to make! I didn’t have cornstarch so I used flour instead, and it still turned out great!
Pretty good, but my custard seemed slightly lumpy until I kept stirring. Also, 2% milk worked fine. Vanilla flavor was nice though.
Glad it came together for you! Lumps happen if the cornstarch/eggs aren’t fully whisked smooth at step 4. Keeping it moving while cooking (step 6) usually fixes it—sounds like you did exactly that.
I tried this and my first batch was totally lumpy too, not gonna lie. I think my milk wasn’t hot enough when I poured it in. After I simmered a bit longer and whisked nonstop, it turned silky.