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Home » Recipes » Desserts

Cadbury Flake Mousse Tart

Published: Mar 25, 2025 by Janet · This post may contain affiliate links · Leave a Comment

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Why You’ll Love This Recipe

This tart is quick to prepare, requiring no baking, and features a rich, creamy mousse paired with a crunchy base. It’s perfect for a celebration or a simple treat, offering a luxurious dessert without the hassle of complicated techniques.

Ingredients

For the Biscuit Base:

  • 1 packet Oreos or tennis biscuits (about 200g)

  • 4 tablespoons melted butter

For the Mousse Filling:

  • 2 cups fresh cream (heavy whipping cream)

  • 1 can (397g) condensed milk

  • ½ cup Cadbury Flake chocolate (grated or broken into small pieces)

For Garnish:

  • 1 packet Cadbury Flake (crumbled on top)

(Tip: You'll find the full list of ingredients and measurements in the recipe card below.)

Directions

  1. Make the Biscuit Base: Crush Oreos or tennis biscuits into fine crumbs. Mix with melted butter and press into a tart pan. Refrigerate for 15-20 minutes.

  2. Prepare the Mousse: Whip fresh cream until soft peaks form, then gradually mix in the condensed milk. Gently fold in the grated Cadbury Flake.

  3. Assemble the Tart: Pour the mousse over the chilled base, smoothing the top. Sprinkle with crumbled Cadbury Flake.

  4. Chill & Serve: Refrigerate for at least 4 hours or overnight. Slice and enjoy!

Servings and Timing

  • Servings: 8-10

  • Preparation Time: 30 minutes

  • Chilling Time: 4 hours or overnight

Storage/Reheating

Store the tart in the fridge for up to 3 days, covered with plastic wrap or in an airtight container. You can freeze individual slices for up to a month. To serve, thaw frozen slices in the fridge for a few hours.

FAQs

Can I use a different type of chocolate instead of Cadbury Flake?

Yes! Any finely grated milk chocolate or chocolate shavings will work, but Cadbury Flake provides the best texture.

Can I make this tart in advance?

Absolutely! This tart actually tastes better after chilling overnight, making it perfect for prepping ahead.

Can I make it without condensed milk?

You can substitute with ½ cup melted white chocolate or use a mixture of whipped cream and mascarpone.

What if I don’t have a tart pan?

A pie dish or springform pan will work just as well. Just ensure the crust is evenly pressed.

How can I make this tart firmer?

For a firmer mousse, add 1 teaspoon of gelatin to the mixture.

Can I use a different base than Oreos?

You can use any biscuits or cookies you like, such as digestives or graham crackers.

How do I know when the mousse is whipped properly?

Stop whipping the cream once soft peaks form—this means the cream holds shape but remains smooth and airy.

Can I add extra flavors to the mousse?

Yes! You can add a splash of vanilla extract or a pinch of sea salt to enhance the chocolate flavor.

Is it possible to make this tart without a mixer?

You can whisk by hand, though using an electric mixer makes the process quicker and easier.

Can I serve this tart with other toppings?

Yes, whipped cream, berries, or a drizzle of melted chocolate would all be delicious additions.

Conclusion

The Cadbury Flake Mousse Tart is a delightful dessert that's easy to make, requires no baking, and delivers a rich, creamy chocolate experience. Whether for a special occasion or a simple indulgence, this tart will surely impress with its luxurious taste and texture.

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Indulge in the irresistible Cadbury Flake Mousse Tart, a no-bake dessert featuring a buttery biscuit base, light and airy mousse filling, and a crumbled Cadbury Flake topping. This easy-to-make treat is perfect for any occasion, delivering a rich chocolate experience that chocolate lovers will adore.

  • Author: Janet
  • Prep Time: 30 minutes
  • Cook Time: 4 hours or overnight
  • Total Time: 4 hours 30 minutes (including chilling)
  • Yield: 8-10 servings
  • Category: Dessert
  • Method: No-bake
  • Cuisine: British
  • Diet: Vegetarian

Ingredients

For the Biscuit Base:

1 packet Oreos or tennis biscuits (about 200g)

4 tablespoons melted butter

For the Mousse Filling:

2 cups fresh cream (heavy whipping cream)

1 can (397g) condensed milk

½ cup Cadbury Flake chocolate (grated or broken into small pieces)

For Garnish:

1 packet Cadbury Flake (crumbled on top)

Instructions

  1. Make the Biscuit Base: Crush the Oreos or tennis biscuits into fine crumbs. Mix them with melted butter and press the mixture into a tart pan. Refrigerate for 15-20 minutes to set.

  2. Prepare the Mousse: Whip the fresh cream until soft peaks form. Gradually mix in the condensed milk and gently fold in the grated Cadbury Flake.

  3. Assemble the Tart: Pour the mousse over the chilled biscuit base, smoothing the top. Sprinkle the crumbled Cadbury Flake on top for garnish.

  4. Chill & Serve: Refrigerate for at least 4 hours, or overnight. Once set, slice and serve.

Notes

  • You can substitute the Cadbury Flake with any finely grated milk chocolate or chocolate shavings for a similar texture.

  • For a firmer mousse, add 1 teaspoon of gelatin to the mousse mixture.

  • This tart can be made ahead of time and tastes even better after chilling overnight.

  • You can store leftovers in the fridge for up to 3 days, or freeze individual slices for up to a month.

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Hi, I’m Janet! Welcome to Recipes by Janet, where I share simple, delicious, and reliable recipes for every meal.

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