Decadent Chocolate Mousse Cake with Oreo Biscuit Base and Ganache Topping

Indulge in this luxurious Chocolate Mousse Cake featuring a crunchy Oreo biscuit base, a rich dark chocolate mousse, and a silky chocolate ganache topping. This dessert is perfect for chocolate lovers and is sure to impress at any gathering. It’s a no-bake treat that’s both easy to make and irresistibly delicious.

Preparation Time:

  • Prep Time: 25 minutes
  • Cooking Time: 0 minutes
  • Total Time: 40 minutes (plus chilling time)

Ingredients:

For the Biscuit Base:

  • 80g Oreo biscuits
  • 40g melted butter

For the Chocolate Mousse:

  • 180g dark chocolate (66% cocoa)
  • 140g milk
  • 280g whipping cream (38% fat)

For the Chocolate Ganache:

  • 50g dark chocolate (66% cocoa)
  • 50g milk chocolate (33.6% cocoa)
  • 100g milk

Directions:

1. Biscuit Base:

  • Crush 80g of Oreo biscuits into fine crumbs.
  • Mix the crumbs with 40g of melted butter until well combined.
  • Press the mixture into the bottom of a 19cm x 11cm mold to form a compact base. Set aside.

2. Chocolate Mousse:

  • In a microwave-safe bowl, combine 180g of dark chocolate and 140g of milk. Microwave until the mixture boils and the chocolate is fully melted. Stir to combine.
  • In a separate bowl, whip 280g of whipping cream until soft peaks form.
  • Gently fold the whipped cream into the melted chocolate mixture until well incorporated.
  • Pour the chocolate mousse over the biscuit base in the mold. Smooth the top with a spatula.

3. Chocolate Ganache:

  • In a microwave-safe bowl, combine 50g of milk chocolate, 50g of dark chocolate, and 100g of milk. Microwave until the mixture boils and the chocolate is fully melted. Stir to combine.
  • Pour the chocolate ganache over the chocolate mousse layer in the mold. Smooth the top with a spatula.

4. Chill:

  • Refrigerate the dessert for at least 15 minutes, or until the ganache is set and the mousse is firm.

5. Serve:

  • Once set, carefully remove the chocolate mousse from the mold. Slice and serve chilled.

Serving Suggestions:

  • Serve with fresh berries or a dollop of whipped cream for a delightful contrast in flavor.
  • Add a sprinkle of sea salt on top for a gourmet touch.
  • Pair with a hot cup of coffee or espresso to balance the richness of the dessert.

Cooking Tips:

  • Ensure the chocolate mixture cools slightly before folding in the whipped cream to prevent the mousse from deflating.
  • Use high-quality chocolate for the best flavor and texture.
  • For an extra firm base, chill the biscuit layer in the fridge for 10 minutes before adding the mousse.

Nutritional Benefits:

  • Dark Chocolate: Rich in antioxidants and minerals like iron and magnesium.
  • Milk: Provides calcium and vitamin D, essential for bone health.
  • Whipping Cream: High in fat, contributing to the mousse’s creamy texture.

Dietary Information:

  • This recipe contains dairy and gluten.
  • Can be made gluten-free by using gluten-free cookies for the base.

Nutritional Facts (Per Serving):

  • Calories: 520 kcal
  • Carbohydrates: 40g
  • Protein: 7g
  • Fat: 36g
  • Fiber: 3g

Storage:

Why You’ll Love This Recipe:

  • Rich Flavor: The combination of dark and milk chocolate creates a perfect balance of bitterness and sweetness.
  • No-Bake Convenience: This dessert requires no baking, making it quick and easy to prepare.
  • Elegant Presentation: The layered effect of the mousse and ganache is visually stunning.
  • Versatile: Perfect for both casual gatherings and special occasions.

Conclusion:

This Decadent Chocolate Mousse Cake is a true showstopper, offering layers of flavor and texture that chocolate lovers will adore. From the crunchy Oreo base to the rich mousse and smooth ganache, every bite is pure indulgence. Serve it chilled and watch as your guests savor each delicious bite. This dessert is sure to become a favorite in your recipe collection.

10 Frequently Asked Questions:

  1. Can I use milk chocolate instead of dark chocolate for the mousse?
    Yes, but it will result in a sweeter mousse. Adjust the sugar content accordingly if needed.
  2. Can I substitute the Oreo biscuits with another type of cookie?
    Absolutely! Graham crackers or digestive biscuits work well as alternatives.
  3. Can I use non-dairy milk and cream?
    Yes, you can use plant-based milk and cream to make this dessert dairy-free.
  4. What’s the best way to crush the Oreo biscuits?
    Place the biscuits in a zip-lock bag and crush them with a rolling pin, or use a food processor.
  5. How long should the mousse chill before serving?
    While the ganache sets in 15 minutes, for the best results, chill the mousse for at least 1 hour before serving.
  6. Can I make this dessert ahead of time?
    Yes, it can be made a day in advance. Just keep it covered in the refrigerator.
  7. What size mold should I use if I don’t have a 19cm x 11cm mold?
    You can use an 8-inch round cake pan or any similar-sized mold.
  8. Can I freeze the chocolate mousse cake?
    Yes, but the texture may change slightly. Thaw in the refrigerator before serving.
  9. How do I prevent the ganache from separating?
    Ensure the chocolate and milk are fully melted and combined before pouring over the mousse.
  10. Can I add flavors like vanilla or coffee to the mousse?
    Yes, a teaspoon of vanilla extract or a tablespoon of brewed coffee can be added to enhance the flavor.