Best Dark Chocolate Peppermint Mousse Tart

Name: Best Dark Chocolate Peppermint Mousse Tart
Prep time: 20 min
Cook time: 10 min
Total time: PT-496315H54M
Ingredients: For the Chocolate Crust: 1 cup of chocolate graham crackers, finely ground (about ten 5″ x 2 1/4″ graham crackers); 6 tablespoons melted butter; 1/4 cup sugar; For the Peppermint Mousse: 1 teaspoon unflavored gelatin; 2 tablespoons cold water; 4 ounces white chocolate chips; 2 1/2 tablespoons milk, half-and-half, or cream; 1 tablespoon powdered sugar; 1 cup heavy whipping cream; 3-4 drops pure peppermint oil; For the Dark Chocolate Glaze: 1/4 cup heavy whipping cream; 3 1/2 ounces bittersweet or dark chocolate (70% cocoa); 2 teaspoons light corn syrup; 2 tablespoons very warm water

Posted on November 30, 2025 · [Elisa]

Desserts

A Simple Tool I Use Every Week

Make Weekly Meals Simple

Plan your meals, organize recipes, and simplify grocery shopping with this easy-to-use Google Sheets meal planner.

Get My Meal Planner

Never miss a recipe again! Subscribe to my newsletter.

Jump to Recipe·Print Recipe

The Dark Chocolate Peppermint Mousse Tart is a showstopper dessert that combines rich, velvety chocolate, refreshing peppermint, and a crunchy graham cracker crust to create a treat that will impress guests and satisfy your sweet tooth. This Dark Chocolate Peppermint Mousse Tart

is perfect for the holiday season, especially Christmas, Thanksgiving, or any festive occasion. With its decadent layers and delightful peppermint flavor, it’s a wonderful way to celebrate with family and friends.

In this article, we will take you through the process of making this Dark Chocolate Peppermint Mousse Tart, from preparing the crust to finishing with the glossy dark chocolate glaze. By following the detailed instructions, you’ll be able to create a dessert that not only tastes amazing but looks stunning as well.

Ingredients You Will Need For Dark Chocolate Peppermint Mousse Tart

For the Chocolate Crust:

1 cup of chocolate graham crackers, finely ground (about ten 5″ x 2 1/4″ graham crackers)
6 tablespoons melted butter
1/4 cup sugar

For the Peppermint Mousse:

1 teaspoon unflavored gelatin
2 tablespoons cold water
4 ounces white chocolate chips
2 1/2 tablespoons milk, half-and-half, or cream
1 tablespoon powdered sugar
1 cup heavy whipping cream
3-4 drops pure peppermint oil (you may need more if using peppermint extract, depending on strength)

For the Dark Chocolate Glaze:

1/4 cup heavy whipping cream
3 1/2 ounces bittersweet or dark chocolate (use a good quality 70% cocoa chocolate)
2 teaspoons light corn syrup
2 tablespoons very warm water

How to Make Dark Chocolate Peppermint Mousse Tart

Step 1: Prepare the Chocolate Crust

The first step in this Dark Chocolate Peppermint Mousse Tart-making journey is the crust. The chocolate graham cracker crust provides a crunchy, sweet, and chocolatey base that pairs beautifully with the smooth peppermint mousse. To start, preheat your oven to 350°F (175°C). In a bowl, combine the finely ground chocolate graham crackers, melted butter, and sugar. Mix everything together until it resembles a damp sand texture. Once combined, press this mixture evenly into the bottom and sides of a 9.5-inch tart pan. It’s important to ensure that the crust is pressed firmly to avoid any gaps once it’s baked.

Place the tart pan in the preheated oven and bake for 10 minutes. This will set the crust and give it a nice, firm texture. After baking, remove the tart shell from the oven and let it cool on a wire rack for at least 15 minutes. While the crust is cooling, you can move on to preparing the peppermint mousse.

Step 2: Make the Peppermint Mousse

The peppermint mousse is the star of this tart. It’s light, fluffy, and perfectly flavored with just the right amount of peppermint to complement the dark chocolate glaze.

To start, sprinkle the unflavored gelatin over the cold water and let it bloom for about 5 minutes. This step is crucial as it activates the gelatin, allowing it to dissolve properly later on. After the gelatin has bloomed, microwave the mixture for about 15-30 seconds, just long enough to dissolve the gelatin completely. Be careful not to overheat it, as boiling can cause the gelatin to lose its setting properties.

Next, melt the white chocolate in a microwave-safe bowl by heating it in 30-second intervals. Stir the chocolate in between intervals until it is fully melted and smooth. After melting the chocolate, heat the milk (or half-and-half or cream) in the microwave until it’s just steaming, which will take about 30 seconds. Whisk the warm milk into the melted white chocolate until the mixture is smooth and completely combined.

Once the white chocolate and milk mixture is smooth, whisk in the dissolved gelatin and peppermint oil. Be sure to whisk vigorously to combine everything evenly. Allow this mixture to cool to about 85°F (29°C), but do not let it resolidify. The mousse mixture should be slightly warm but not too hot when you combine it with the whipped cream.

While the chocolate mixture is cooling, you can prepare the whipped cream. In a separate bowl, whip the heavy cream with powdered sugar until medium-stiff peaks form. Be careful not to overwhip, as this could turn the cream into butter.

Once the chocolate mixture has cooled, add about one-third of the whipped cream into the mixture and stir gently to combine. Then, add the remaining whipped cream and fold it in gently, using a spatula. This folding technique is essential to maintaining the airy texture of the mousse. Once everything is combined, the mousse should be light, fluffy, and smooth.

Spoon the mousse into the cooled tart shell, smoothing the top with an offset spatula. Place the tart in the refrigerator to chill for a few hours, or overnight if you have the time. This allows the mousse to set and ensures that the tart will hold its shape when sliced.

Step 3: Prepare the Dark Chocolate Glaze

While the mousse is chilling, you can prepare the dark chocolate glaze. The glaze adds a rich, glossy finish that enhances the tart’s appearance and flavor.

In a small saucepan, bring the heavy whipping cream to a boil. Once it reaches a boil, remove it from the heat and immediately stir in the bittersweet or dark chocolate. Stir the mixture until the chocolate is completely melted and smooth. Then, add the light corn syrup to the mixture. The corn syrup adds shine to the glaze and helps it set nicely. Finally, stir in the very warm water, adjusting the consistency as needed. You want the glaze to be pourable but not too runny.

Once the mousse has fully set in the refrigerator, pour the glaze over the mousse layer, ensuring that it covers the tart evenly. Tilt and rotate the tart to make sure the glaze coats the entire surface, leaving no white visible. Let the tart stand at room temperature for about an hour to allow the glaze to set. This step will ensure that the glaze hardens into a smooth, shiny layer.

Step 4: Chill and Serve

Once the glaze has set, the Dark Chocolate Peppermint Mousse Tart is ready to serve. If you’re not serving it right away, you can keep it covered in the fridge for up to 3-4 days. However, it’s best enjoyed the day it’s made for the freshest taste and texture. Before serving, let the tart sit at room temperature for a few minutes to prevent condensation from forming on the glaze.

When ready to serve, slice the tart carefully with a sharp knife to ensure clean cuts. The layers should be beautifully defined, with the crunchy chocolate crust, fluffy mousse, and glossy chocolate glaze creating a visually stunning dessert.

Why This Dark Chocolate Peppermint Mousse Tart is Perfect for the Holidays

The Dark Chocolate Peppermint Mousse Tart is the perfect dessert for the holidays because it offers a balance of rich flavors and a festive, refreshing twist. The combination of dark chocolate and peppermint evokes the flavors of Christmas, making it an ideal choice for a holiday gathering. Its elegant presentation also makes it a showstopper at any party or dinner table.

Whether you’re hosting a Christmas dinner, a holiday brunch, or a winter celebration, this Dark Chocolate Peppermint Mousse Tart will impress your guests with both its appearance and taste. The mousse is light yet rich, the peppermint adds a refreshing note, and the dark chocolate glaze gives it an extra layer of sophistication.

If you’re looking for more holiday dessert inspiration, you can try making Mini Christmas Drip Cakes for an adorable, individual-sized treat, or try something festive like Christmas Tree Cream Puffs for a fun, light, and creamy option.

Conclusion

The Dark Chocolate Peppermint Mousse Tart is a decadent, festive dessert that brings together a variety of delicious flavors and textures. From the crunchy chocolate graham cracker crust to the smooth, airy peppermint mousse and the glossy dark chocolate glaze, this Dark Chocolate Peppermint Mousse Tart is a treat that everyone will love. It’s not just a dessert; it’s a celebration of holiday flavors in one delicious bite.

With its easy-to-follow instructions, you can confidently make this Dark Chocolate Peppermint Mousse Tart for your next special occasion. Whether it’s Christmas, Thanksgiving, or any time you want to enjoy a sweet, indulgent dessert, this Dark Chocolate Peppermint Mousse Tart is sure to become a favorite in your holiday recipe collection.

For the best results, be sure to follow the steps carefully, and don’t rush through the chilling process. Letting the mousse and glaze set will ensure that you have a perfectly executed dessert. This tart is a perfect balance of chocolate and peppermint, making it a true crowd-pleaser that’s sure to become a holiday tradition for years to come.

So, next time you’re planning a special holiday meal or looking for a stunning dessert to impress your guests, consider making this Dark Chocolate Peppermint Mousse Tart. It’s a guaranteed way to end the meal on a high note. If you’re interested in more festive and easy-to-make desserts, check out Cranberry Brie Tart with Pancetta and Thyme.

Save