Decadent White Chocolate Mousse Tart is a delightful dessert that brings a touch of elegance to any table. This tart features a creamy white chocolate filling nestled inside a flaky crust. It’s sweet, rich, and impressively easy to make. Perfect for special occasions or just a cozy night in with the family, this dessert is sure to satisfy your sweet tooth.

Why You Will Love This Decadent White Chocolate Mousse Tart
This white chocolate mousse tart is a hit for many reasons! It’s simple enough for a beginner to tackle but impressive enough to serve at gatherings. The buttery crust and smooth mousse come together beautifully, and you’ll only need a few everyday ingredients. Plus, it’s a great way to treat yourself and your loved ones without spending all day in the kitchen.
How to Make Decadent White Chocolate Mousse Tart
Making this tart is straightforward and enjoyable. Start by creating the crust, then whip up the chocolate mousse filling. Assemble it all together and let it chill. That’s it! You’ll have a stunning dessert that feels fancy yet is easy to prepare.
What You Need
- 1 cup Pastry Dough (A flaky crust that serves as the perfect base; chill the butter for a tender texture.)
- 1/4 tsp Salt (Enhances the flavor of the dough, making every bite deliciously balanced.)
- 8 oz White Chocolate (The star of the show; use high-quality chocolate for a rich, creamy experience.)
- 1 cup Heavy Cream (Adds lusciousness and volume; be careful not to overwhip it for the ideal mousse texture.)
- 4 large Egg Yolks (Provide necessary structure and creaminess; opt for fresh eggs for the best flavor.)
- 1/4 cup Sugar (Sweetens the mousse; adjust based on the sweetness of your chocolate.)
Step-by-Step
Pastry Dough Preparation
- Preheat your oven. Roll out the pastry dough and fit it into a tart pan. Press it gently into the edges and trim any excess.
- Sprinkle the salt over the dough. Bake until golden brown, then let it cool.
Mousse Filling Preparation
- Melt the white chocolate carefully in a bowl. Let it cool slightly.
- In another bowl, whisk together the egg yolks and sugar until creamy.
- Pour in the melted chocolate, stirring gently. In a separate bowl, whip the heavy cream until soft peaks form. Slowly fold the cream into the chocolate mixture until combined.
Assemble and Chill
- Pour the mousse filling into the cooled crust. Smooth the top and refrigerate for several hours to set.
- Once set, slice and enjoy!

How to Serve Decadent White Chocolate Mousse Tart
Serve this delicious tart as a finale to any meal. Pair it with fresh berries for a splash of color and a hint of tartness. A drizzle of raspberry sauce or a dollop of whipped cream also complements it perfectly. It’s great for birthday parties, holiday gatherings, or simply a sweet treat at the end of the week.
How to Store Decadent White Chocolate Mousse Tart
To keep this tart fresh, store it in the fridge covered with plastic wrap for up to three days. If you want to freeze it, wrap slices tightly in plastic wrap and place them in an airtight container. When you’re ready to indulge, allow it to thaw in the fridge overnight.
Recipe Tips
- Chill the dough before rolling it out to prevent shrinking.
- Use a heavy-duty chocolate for the best flavor and texture.
- Be gentle when folding the whipped cream to maintain the mousse’s lightness.
- Avoid overbaking the crust; a light golden color is ideal.
- Adjust the sugar level based on your chocolate’s sweetness to enhance the flavor.
Variations & Swaps
- For a chocolate twist, replace half the white chocolate with dark chocolate.
- Add a splash of vanilla extract for an extra layer of flavor.
- Use a gluten-free crust if needed to accommodate dietary restrictions.
FAQs
Can I make this tart ahead of time?
Yes, this tart is perfect for making ahead! You can prepare it a day in advance and let it chill in the fridge. Just wait until serving to add any toppings.
Can I freeze the tart?
You can freeze the tart, but it’s best to do so before adding the mousse filling. Once the tart crust is baked and cooled, wrap it tightly and freeze. Add the filling when you’re ready to enjoy it.
How do I reheat this dessert?
This dessert doesn’t require reheating. Serve it cold right from the fridge for the best texture.
What can I substitute for egg yolks?
If you’re looking for an egg-free version, you can try using silken tofu blended until smooth and mixed with a bit of sugar and vanilla.
What is the best way to slice this tart?
To slice cleanly, use a warm knife. Dip the knife in hot water, wipe it dry, and then cut the tart. This will help create smooth edges for each slice.

Decadent White Chocolate Mousse Tart
Ingredients
For the crust
- 1 cup Pastry Dough A flaky crust that serves as the perfect base; chill the butter for a tender texture.
- 1/4 tsp Salt Enhances the flavor of the dough, making every bite deliciously balanced.
For the mousse filling
- 8 oz White Chocolate The star of the show; use high-quality chocolate for a rich, creamy experience.
- 1 cup Heavy Cream Adds lusciousness and volume; be careful not to overwhip it for the ideal mousse texture.
- 4 large Egg Yolks Provide necessary structure and creaminess; opt for fresh eggs for the best flavor.
- 1/4 cup Sugar Sweetens the mousse; adjust based on the sweetness of your chocolate.
Instructions
Pastry Dough Preparation
- Preheat your oven.
- Roll out the pastry dough and fit it into a tart pan. Press it gently into the edges and trim any excess.
- Sprinkle the salt over the dough.
- Bake until golden brown, then let it cool.
Mousse Filling Preparation
- Melt the white chocolate carefully in a bowl. Let it cool slightly.
- In another bowl, whisk together the egg yolks and sugar until creamy.
- Pour in the melted chocolate, stirring gently.
- In a separate bowl, whip the heavy cream until soft peaks form. Slowly fold the cream into the chocolate mixture until combined.
Assemble and Chill
- Pour the mousse filling into the cooled crust. Smooth the top and refrigerate for several hours to set.
- Once set, slice and enjoy!
