Tarte au chocolat super onctueuse 🍫🍫🍫

Tarte au chocolat super onctueuse 🍫🍫🍫 is a medium French recipe that serves 8. 450 calories per serving. Recipe by Il était une fois la pâtisserie on YouTube.

Prep: 8 hrs 10 min | Cook: 20 min | Total: 8 hrs 50 min

Cost: $16.60 total, $2.08 per serving

Ingredients

  • 300 g Dark Chocolate (70% cocoa) (chopped into small pieces)
  • 300 ml Heavy Cream (divided: 200 ml for ganache, 100 ml for final mixing)
  • 2 Gelatin Sheets (softened in cold water, then squeezed)
  • 2 Tbsp Cold Water (for softening gelatin)
  • 150 g Hazelnut Flour (finely ground, gives nutty flavor)
  • 100 g All‑Purpose Flour (helps bind the crust)
  • 120 g Unsalted Butter (cold, cut into cubes)
  • 130 g Granulated Sugar (50 g for crust, 80 g for filling)
  • 5 Egg Yolks (4 for filling, 1 for crust (optional, helps bind))
  • 200 ml Whole Milk (for chocolate custard filling)
  • 1 Tbsp Unsweetened Cocoa Powder (for dusting, optional)
  • 1 Tbsp Butter (for greasing) (softened, to butter tart pan)

Instructions

  1. Soften Gelatin

    Place the gelatin sheets in a small bowl with 2 Tbsp cold water. Let sit for 5 minutes until softened, then gently squeeze out excess water.

    Time: PT5M

  2. Heat Cream for Ganache

    In a saucepan, heat 200 ml of heavy cream over medium heat until it just begins to simmer (about 85 °C). Remove from heat.

    Time: PT5M

    Temperature: 85°C

  3. Incorporate Gelatin

    Stir the squeezed gelatin into the hot cream until fully dissolved.

    Time: PT2M

  4. Melt Chocolate

    Add the chopped dark chocolate to the cream‑gelatin mixture. Let sit a few seconds, then stir gently until the chocolate is completely melted.

    Time: PT3M

  5. Finish Ganache Base

    Stir in the remaining 100 ml of heavy cream until the ganache is homogeneous. Transfer to a shallow container, cover, and chill for at least 4 hours (overnight is best).

    Time: PT4H

  6. Whip Ganache

    Remove the chilled ganache from the fridge. Using a whisk or hand mixer, start on low speed and gradually increase to medium‑high, whipping until the ganache thickens but is still soft enough to spread.

    Time: PT5M

  7. Prepare Crust Ingredients

    In the food processor bowl, combine hazelnut flour, all‑purpose flour, sugar, and a pinch of salt. Pulse briefly.

    Time: PT2M

  8. Add Butter and Form Dough

    Add cold cubed butter to the flour mixture. Pulse until the mixture resembles coarse crumbs. Add 1 egg yolk (optional) and pulse just until the dough comes together into a ball.

    Time: PT8M

  9. Chill Crust Dough

    Flatten the dough into a disc, wrap in plastic, and refrigerate for 1 hour.

    Time: PT1H

  10. Roll Out Crust

    On a lightly floured surface, roll the dough to a uniform 3 mm thickness. Cut a 22 cm round for the base and cut a 3 mm‑thick strip to line the edge of the tart pan.

    Time: PT10M

  11. Chill Shaped Crust

    Place the crust pieces on parchment paper, cover, and refrigerate for another 1 hour.

    Time: PT1H

  12. Prepare Chocolate Custard Filling

    In a saucepan, combine 200 ml whole milk, 100 ml heavy cream, and 80 g sugar. Heat gently until just simmering. Remove from heat and pour over the remaining 200 g chopped dark chocolate. Let sit a few seconds, then stir until smooth.

    Time: PT5M

    Temperature: 85°C

  13. Add Egg Yolks to Filling

    Temper the 4 egg yolks by whisking a small amount of the warm chocolate mixture into them, then fold the yolk mixture back into the full chocolate custard. Mix until fully incorporated.

    Time: PT5M

  14. Chill Filling

    Cover the custard filling and refrigerate for 1 hour (or overnight).

    Time: PT1H

  15. Blind‑Bake Tart Shell

    Preheat the oven to 180 °C. Butter the tart pan, line the base with parchment paper, and fill with baking beans. Dock the base with a fork. Bake for 15 minutes until lightly golden.

    Time: PT15M

    Temperature: 180°C

  16. Add Custard Filling

    Remove the blind‑baked shell, discard the beans and parchment, and pour the chilled chocolate custard filling into the crust, smoothing the top.

    Time: PT5M

  17. Second Bake

    Return the tart to the oven and bake for an additional 5 minutes to set the filling.

    Time: PT5M

    Temperature: 180°C

  18. Cool Slightly

    Remove the tart from the oven and let it cool on a rack for about 15 minutes.

    Time: PT15M

  19. Spread Ganache Topping

    Evenly spread the whipped ganache over the cooled tart surface using a spatula.

    Time: PT5M

  20. Final Chill and Serve

    Place the finished tart in the freezer for at least 2 hours until the ganache is firm enough to unmold. Dust with unsweetened cocoa powder (optional) and serve.

    Time: PT2H

Nutrition Facts

Calories
450
Protein
5 g
Carbohydrates
40 g
Fat
30 g
Fiber
3 g

Dietary info: Vegetarian, Contains dairy, Contains nuts, Contains gluten

Allergens: Milk, Eggs, Hazelnuts, Gluten

Last updated: April 7, 2026

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Tarte au chocolat super onctueuse 🍫🍫🍫

Recipe by Il était une fois la pâtisserie

A luxurious, ultra‑chocolate tart with a hazelnut crust, a silky chocolate custard filling, and a glossy chocolate‑gelatin ganache topping. Perfect for celebrations or any chocolate lover who wants a rich, velvety dessert.

MediumFrenchServes 8

Shop all ingredients on Amazon in one click • Printable PDF with shopping checklist

Source Video
10h
Prep
35m
Cook
1h 16m
Cleanup
11h 51m
Total

Cost Breakdown

$16.60
Total cost
$2.08
Per serving

Critical Success Points

  • Soaking and fully dissolving gelatin without overheating.
  • Ensuring chocolate is completely melted and smooth before adding extra cream.
  • Chilling the ganache until thick but still spreadable.
  • Rolling the crust to an even 3 mm thickness for uniform baking.
  • Blind‑baking the crust to prevent sogginess.
  • Tempering egg yolks into the chocolate custard to avoid curdling.
  • Freezing the final tart long enough to allow clean unmolding.

Safety Warnings

  • Hot cream can cause severe burns – handle with care.
  • Gelatin sheets are slippery; handle with clean hands to avoid slips.
  • Use a sharp knife when cutting dough to prevent slips.
  • Always use oven mitts when handling hot pans.

Frequently Asked Questions

Everything you need to know about this recipe

Q

What is the cultural significance and history of an intense chocolate tart in French pastry tradition?

A

Chocolate tarts have been a staple of French pâtisserie since the 19th century, when chocolate became widely available. The rich, layered version with a nut‑flavored crust and ganache reflects the French love for contrast between crisp pastry and silky chocolate, often served at celebrations and holidays.

cultural
Q

What are the traditional regional variations of chocolate tart in French cuisine?

A

In the Île‑de‑France region, tarts often use almond flour for the crust, while in the Rhône‑Alps area hazelnut or walnut flour is common. Some versions add a splash of orange liqueur or coffee to the ganache for regional flavor twists.

cultural
Q

How is an authentic intense chocolate tart traditionally served in France?

A

It is typically presented on a plain white plate, dusted with unsweetened cocoa powder, and served slightly chilled. A dollop of lightly sweetened whipped cream or a scoop of vanilla ice cream is sometimes offered on the side.

cultural
Q

What occasions or celebrations is an intense chocolate tart traditionally associated with in French culture?

A

The tart is popular for birthdays, weddings, and the holiday season, especially Noël (Christmas) and La Fête des Rois, where its luxurious chocolate flavor makes it a centerpiece dessert.

cultural
Q

How does an intense chocolate tart fit into the broader French pastry tradition?

A

It exemplifies the French pastry principle of balance: a buttery, nutty crust, a smooth, custard‑like chocolate filling, and a glossy ganache topping. This layering mirrors classic French desserts such as mille‑feuille and opera cake.

cultural
Q

What are the authentic traditional ingredients for an intense chocolate tart versus acceptable substitutes?

A

Traditionally the tart uses high‑quality dark chocolate, hazelnut flour, butter, cream, and gelatin. Acceptable substitutes include almond flour for the crust, cocoa powder instead of extra chocolate for the ganache, or agar‑agar for a vegetarian setting.

cultural
Q

What other French dishes pair well with an intense chocolate tart?

A

A crisp glass of Champagne, a sweet Sauternes wine, or a cup of strong French press coffee complement the tart’s richness. For a lighter pairing, serve with a fruit compote of berries or poached pears.

cultural
Q

What are the most common mistakes to avoid when making an intense chocolate tart at home?

A

Common errors include overheating the ganache, which makes it grainy; under‑chilling the ganache so it cannot be spread; over‑mixing the crust dough, leading to a tough base; and failing to blind‑bake the crust, resulting in sogginess.

technical
Q

Why does this intense chocolate tart recipe use gelatin in the ganache instead of simply chilling the chocolate‑cream mixture?

A

Gelatin stabilizes the ganache, giving it a light, mousse‑like texture that holds its shape when spread and after freezing. Without gelatin, the ganache would become too runny and could melt the tart’s filling.

technical
Q

Can I make the intense chocolate tart ahead of time and how should I store it?

A

Yes. Prepare the crust, fill, and ganache up to the final chilling step. Keep the assembled tart wrapped in plastic and refrigerated for up to 3 days, or freeze for up to 1 month. Thaw in the refrigerator before serving.

technical
Q

What does the YouTube channel Il était une fois la pâtisserie specialize in?

A

The YouTube channel Il était une fois la pâtisserie specializes in French pastry tutorials, focusing on classic techniques, elegant desserts, and detailed step‑by‑step guidance for home bakers.

channel
Q

How does the YouTube channel Il était une fois la pâtisserie's approach to French pastry differ from other French cooking channels?

A

Il était une fois la pâtisserie emphasizes precise temperature control, the use of professional‑grade equipment, and thorough explanations of why each step matters, whereas many other channels focus more on quick, simplified methods.

channel

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