Dark Chocolate Peppermint Mousse Tart Recipe
This Dark Chocolate Peppermint Mousse Tart features a rich chocolate graham cracker crust filled with a light and fluffy peppermint-infused white chocolate mousse, topped with a glossy dark chocolate glaze. Perfect for holiday celebrations or any time you crave a festive, sophisticated dessert with a refreshing minty touch and deep chocolate flavor.
- Author: Naya
- Prep Time: 25 minutes
- Cook Time: 10 minutes
- Total Time: 5 hours (including chilling time)
- Yield: 8 servings 1x
- Category: Dessert
- Method: Baking, Chilling
- Cuisine: American
- Diet: Vegetarian
For Chocolate Crust:
- 1 cup chocolate graham crackers, finely ground (about ten 5″ x 2 1/4″ graham crackers)
- 6 tablespoons melted butter
- 1/4 cup sugar
For 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 (adjust if using extract)
For Dark Chocolate Glaze:
- 1/4 cup heavy whipping cream
- 3 1/2 ounces bittersweet or dark chocolate (about 70% cocoa)
- 2 teaspoons light corn syrup
- 2 tablespoons very warm water
- Prepare the Chocolate Crust: Preheat your oven to 350°F (175°C). In a bowl, combine finely ground chocolate graham crackers, melted butter, and sugar. Press the mixture evenly into the bottom and up the sides of a 9.5-inch wide by 1-inch high tart pan. Bake for 10 minutes, then transfer to a cooling rack and allow it to cool for at least 15 minutes.
- Make the Peppermint Mousse: Sprinkle the unflavored gelatin over 2 tablespoons of cold water and let it bloom for 5 minutes. Microwave the gelatin mixture for 15-30 seconds until just dissolved; avoid boiling it. Next, melt the white chocolate chips in the microwave in 30-second intervals, stirring between each, until melted and smooth. Heat the milk or cream until steaming (about 30 seconds), then whisk it vigorously into the melted white chocolate until smooth. Add the dissolved gelatin and peppermint oil to the mixture and whisk again to combine. Allow this mixture to cool to 85°F or less without letting it solidify. In a separate bowl, whip the heavy cream with powdered sugar until medium-stiff peaks form. Add one-third of the whipped cream to the chocolate mixture and stir gently to combine. Fold in the remaining whipped cream carefully to preserve the mousse’s airiness.
- Assemble the Tart: Spoon the peppermint mousse into the cooled chocolate crust, smoothing the surface with an offset spatula. Refrigerate the tart for several hours or overnight to allow the mousse to set firmly.
- Prepare the Dark Chocolate Glaze: Once the mousse tart is fully chilled, prepare the glaze by bringing 1/4 cup heavy cream to a boil, then removing it from the heat. Immediately stir in the bittersweet or dark chocolate until smooth. Add the light corn syrup and then the very warm water, mixing thoroughly for a glossy finish.
- Glaze the Tart: Pour the chocolate glaze evenly over the top of the mousse tart. Tilt and rotate the tart carefully to coat the surface completely with shiny glaze, ensuring no white patches remain visible. Let the glaze set at room temperature for about 1 hour.
- Serve and Store: This tart is best enjoyed the day it is finished but can be stored covered in the refrigerator for 3-4 days. Before serving, let it sit at room temperature for a few minutes to prevent condensation on the glaze when uncovered.
Notes
- Use pure peppermint oil for the most authentic flavor; peppermint extract can be used but adjust quantity carefully.
- Do not boil gelatin; overheating will reduce its effectiveness.
- Allow mousse mixture to cool to 85°F to avoid melting the whipped cream when folding.
- If glaze appears too thick, gently warm it before pouring to maintain its glossy texture.
- Let tart sit at room temperature briefly before serving to enhance flavor and texture.
- Store tart covered in the refrigerator to maintain freshness and prevent the crust from becoming soggy.
Nutrition
- Serving Size: 1 slice (1/8 of tart)
- Calories: 420 kcal
- Sugar: 25 g
- Sodium: 75 mg
- Fat: 32 g
- Saturated Fat: 19 g
- Unsaturated Fat: 12 g
- Trans Fat: 0.2 g
- Carbohydrates: 30 g
- Fiber: 3 g
- Protein: 5 g
- Cholesterol: 95 mg
Keywords: dark chocolate tart, peppermint mousse, holiday dessert, chocolate mousse tart, peppermint chocolate dessert