Vanilla and Praline Tart
Vanilla and Praline Tart is a medium French recipe that serves 8. 420 calories per serving. Recipe by Once Upon a Time Pastry on YouTube.
Prep: 15 hrs 42 min | Cook: 1 hr 5 min | Total: 16 hrs 17 min
Cost: $21.46 total, $2.68 per serving
Ingredients
- 150 g All-purpose flour (Sift before use)
- 50 g Almond powder (Unroasted)
- 50 g Powdered sugar (For the sweet pastry)
- 100 g Unsalted butter (Cold, diced)
- 1 Egg (Large, at room temperature)
- 1 Vanilla bean (Split and scraped)
- 250 ml Heavy cream (At 20 °C)
- 200 g White chocolate (Cut into pieces)
- 200 g Sugar (For the praline)
- 100 ml Water
- 150 g Shelled hazelnuts (Lightly toasted)
- 150 g Whole almonds (Lightly toasted)
- 50 g Melted butter (Let warm)
- 50 g Powdered sugar (for the biscuit)
- 30 g Flour (for the biscuit)
- 70 g Hazelnut powder (Fine)
- 2 Whole eggs (At room temperature)
- 2 Egg whites (At room temperature)
- 50 g Sugar (for the meringue)
- few leaves Edible gold leaf (For decoration)
- 20 g Butter for greasing the pan
- 1 sheet Parchment paper
- Small amount Ceramic beads (or dried beans) (For blind baking)
Instructions
Prepare the sweet pastry
In a bowl, mix the flour, almond powder, powdered sugar, cold diced butter and the egg. Work quickly until a homogeneous ball forms.
Time: PT7M
Dough resting
Wrap the dough ball in plastic wrap and place it in the refrigerator for 1 hour.
Time: PT1H
Line the pan
On a lightly floured work surface, roll the dough to 3 mm thickness. Cut a 22 cm disc and place it in the pan, lightly butter the edges, trim the excess and refrigerate for 8 hours (or overnight).
Time: PT5M
Chill the tart base
Leave the tart base in the refrigerator for 8 hours (or overnight) so it is firm before blind baking.
Time: PT8H
Prepare the praline
Bring 100 ml water to a boil with 200 g sugar. As soon as the sugar reaches 118 °C, add the hazelnuts and almonds. Stir until a white film forms around the nuts, then continue cooking until a golden caramel is obtained.
Time: PT15M
Temperature: 118°C
Cool the praline
Pour the caramel onto a sheet lined with parchment paper, spread in a thin layer and let it harden completely (about 30 minutes).
Time: PT30M
Blend the praline
Once hardened, break the praline into pieces and blend at high speed until a very fine, homogeneous powder is obtained.
Time: PT5M
Vanilla cream infusion
In a saucepan, bring 250 ml cream to 90 °C with the split and scraped vanilla bean. Remove from heat, let infuse for 1 hour, then remove the bean.
Time: PT10M
Temperature: 90°C
Melt the white chocolate
Reheat 50 ml cream to 45 °C, pour over the white chocolate pieces, stir until the chocolate is completely melted and smooth.
Time: PT10M
Temperature: 45°C
Cool the ganache
Let the ganache come to room temperature then place it in the refrigerator for at least 4 hours until it thickens.
Time: PT4H
Prepare the Joconde biscuit
Melt 50 g butter, mix with 50 g powdered sugar, 30 g flour, 70 g hazelnut powder, then incorporate 2 whole eggs. Whisk separately 2 egg whites with 50 g sugar until a firm meringue forms, then gently fold into the batter.
Time: PT30M
Bake the Joconde biscuit
Spread the batter onto a sheet lined with parchment paper, form a disc the size of the tart base and bake at 150 °C for 12‑15 minutes until golden.
Time: PT15M
Temperature: 150°C
Blind bake the tart base
Preheat oven to 200 °C, place the tart base lined with parchment paper and ceramic beads, bake 5 minutes, then lower temperature to 150 °C and continue 10 minutes until the dough is lightly golden.
Time: PT15M
Temperature: 150°C
Assemble the tart
Spread an even layer of about 150 g praline over the baked tart base, place the Joconde biscuit on top (trim slightly if needed) and smooth.
Time: PT10M
Pipe the ganache
Whisk the cooled ganache at low speed until thickened, place in a pastry bag fitted with a star tip and pipe decorative lines over the entire surface of the tart.
Time: PT15M
Final decoration
Decorate with small sweet‑pastry hearts, praliné tips and a few edible gold leaves.
Time: PT10M
Nutrition Facts
- Calories
- 420
- Protein
- 5 g
- Carbohydrates
- 45 g
- Fat
- 25 g
- Fiber
- 3 g
Dietary info: Vegetarian, Contains nuts, Contains gluten
Allergens: Gluten, Milk, Nuts (hazelnuts, almonds), Eggs
Ingredient Substitutions
- Instead of All-purpose flour: Whole wheat flour
- Instead of Almond powder: Ground almonds
- Instead of Powdered sugar: Granulated sugar
- Instead of Unsalted butter: Margarine (not recommended)
- Instead of Egg: Flax egg (for vegan version)
- Instead of Vanilla bean: Vanilla extract
- Instead of Heavy cream: 30% cream
- Instead of White chocolate: White milk chocolate
- Instead of Sugar: Cane sugar
- Instead of Shelled hazelnuts: Almonds
- Instead of Whole almonds: Hazelnuts
- Instead of Melted butter: Neutral oil
- Instead of Powdered sugar (for the biscuit): Granulated sugar
- Instead of Flour (for the biscuit): All-purpose flour
- Instead of Hazelnut powder: Almond powder
- Instead of Whole eggs: 2 eggs + 1 extra egg white
- Instead of Egg whites: Aquafaba
- Instead of Sugar (for the meringue): Powdered sugar
- Instead of Edible gold leaf: Chocolate decoration
- Instead of Ceramic beads (or dried beans): Dried beans
Equipment Needed
- Mixer (or stand mixer)
- Mixing bowls
- Rolling pin
- 22 cm removable tart pan
- Parchment paper
- Cooking thermometer
- Saucepan
- Silicone spatula
- Immersion blender (or Cook Expert robot)
- Pastry bag with star tip
- Oven
- Cooling rack (optional)
Critical Steps — Do Not Skip
- Dough resting in the fridge (1 h + 8 h rest)
- Praline caramelization at 118 °C
- Blind baking of the tart base
- Incorporation of the meringue into the Joconde biscuit
- Complete cooling of the ganache before piping
Chef Tips from the Video
- Use very cold butter for the dough to achieve a flaky texture.
- Add a pinch of salt to the sweet pastry to enhance flavors.
- For an even more elegant effect, place the gold leaf on the ganache while still slightly warm.
Troubleshooting
The praline is grainy after blending.
Check that the caramel was fully hardened before blending; if necessary, gently reheat it in a bain‑marie and blend again.
The ganache remains liquid and does not set.
Let the ganache cool longer in the refrigerator, or add 1‑2 tablespoons of extra white chocolate.
The tart base separates after blind baking.
Ensure the pan is well buttered and pierce the base with a fork before baking.
Storage
Refrigerator: Store the tart in an airtight container for up to 2 days.
Freezer: Not recommended, the texture of the praline and biscuit deteriorates.
Room temperature: Consume the same day, otherwise keep refrigerated.
Make-Ahead Tips
- Prepare the praline and blend it 24 h ahead, store in an airtight jar.
- The ganache can be made the day before and refrigerated; whisk it again before piping.
- The sweet pastry dough can be prepared 2 days ahead and kept chilled.
Last updated: August 20, 2026






