If you have a craving for something truly decadent yet irresistibly light, then this Cadbury Flake Mousse Tart Recipe is about to become your new best friend in the kitchen. The perfect blend of crumbly biscuit base, airy chocolate mousse, and those iconic, flaky Cadbury Flake bars melt together into a dessert that feels like a little celebration in every bite. Whether you’re treating yourself or impressing friends, this tart delivers a charming balance of textures and flavors that will have everyone asking for seconds.

Cadbury Flake Mousse Tart Recipe - Recipe Image

Ingredients You’ll Need

Getting this recipe right is all about simple, quality ingredients that each play a crucial role in building up the flavor and structure of your mousse tart. From the buttery biscuit crust to the creamy chocolate mousse and the delicate flakes on top, every component shines through.

  • Digestive biscuit crumbs (1 ½ cups): Provides a crunchy, buttery base that crisps up beautifully when baked.
  • Unsalted butter (½ cup, melted): Helps bind the crumbs together and adds a rich depth to the crust.
  • Granulated sugar (2 tbsp): Adds just the right amount of sweetness to the crust.
  • Cadbury Flake chocolate bars (4 bars of about 35g each): The star ingredient for that melt-in-your-mouth, flaky chocolate mousse.
  • Heavy whipping cream (1 ½ cups): Whipped to fluffy perfection to create the mousse’s light texture.
  • Vanilla extract (1 tsp): Enhances the chocolate flavor with a subtle warmth.
  • Powdered sugar (2 tbsp): Sweetens the whipped cream delicately without graininess.
  • Gelatin (1 tbsp, optional): Adds extra firmness to ensure the mousse sets perfectly.
  • Additional Cadbury Flake bars (2 bars, broken into pieces): For garnish and added texture on top.
  • Fresh berries (optional): Bring a juicy pop of color and freshness to balance the rich mousse.

How to Make Cadbury Flake Mousse Tart Recipe

Step 1: Prepare the Tart Shell

Start by preheating your oven to 350°F (175°C). Mix together the digestive biscuit crumbs, melted butter, and granulated sugar until your mixture resembles wet sand and holds together when pressed. Press this evenly into the base and sides of your tart pan, making sure to create a firm, uniform layer. Bake for 8-10 minutes until the crust turns a lovely light golden color, then let it cool completely to set up before adding your mousse. This step creates the crunchy foundation that contrasts perfectly with the airy mousse.

Step 2: Make the Chocolate Mousse

Break the Cadbury Flake bars into smaller pieces and melt them gently in the microwave, stirring every 20 seconds to avoid overheating. While the chocolate cools slightly, whip the heavy cream together with vanilla and powdered sugar until you can form stiff peaks—this means your mousse will hold its shape beautifully. If you want a mousse with a bit more structure, dissolve gelatin in warm water and mix it into the melted chocolate now. Finally, fold your whipped cream gently into the chocolate mixture to preserve all that lovely fluffiness.

Step 3: Assemble the Tart

Pour the luscious chocolate mousse evenly over your cooled tart shell, smoothing it with a spatula. Place the tart in the refrigerator and allow it to chill for at least three hours. This chill time is essential to develop the mousse’s dreamy, set texture so you get clean slices and rich layers of flavor that melt on the tongue.

Step 4: Decorate and Serve Your Cadbury Flake Mousse Tart Recipe

Just before serving, scatter broken pieces of Cadbury Flake bars over the top for that signature flakiness, and add a handful of fresh berries if you like for a fresh, fruity contrast. Slice carefully and prepare to impress yourself and your guests with this delightful dessert that’s as beautiful as it is delicious.

How to Serve Cadbury Flake Mousse Tart Recipe

Cadbury Flake Mousse Tart Recipe - Recipe Image

Garnishes

Broken Cadbury Flake pieces on top bring a crunchy, chocolatey texture that contrasts with the smooth mousse base. Fresh berries like raspberries or blueberries add vibrant color and a bright, juicy note that cuts through the richness perfectly. A dusting of cocoa powder or a drizzle of chocolate sauce can also elevate the look and flavor, making your tart look effortlessly elegant.

Side Dishes

This tart pairs wonderfully with a simple cup of rich coffee or a smooth glass of dessert wine to balance the sweetness. Light whipped cream or vanilla ice cream on the side enhances the mousse’s creamy texture without overpowering its unique chocolate flake character. Fruit salads with citrus elements also complement the tart perfectly for a refreshing finish.

Creative Ways to Present

For a fun twist on presentation, try serving individual mousse tartlets in mini tart pans or clear glasses layered with crushed biscuits and mousse for a deconstructed effect. Edible gold leaf or chocolate curls add a touch of luxury for special occasions. You could even create a festive tart by adding edible flowers or a sprinkle of crushed nuts for an extra crunch and visual appeal.

Make Ahead and Storage

Storing Leftovers

Store your Cadbury Flake Mousse Tart Recipe covered in the refrigerator for up to three days to keep the mousse fresh and the crust crisp. Use an airtight container or wrap it tightly with plastic wrap to prevent it from absorbing any fridge odors. This way, you can enjoy leftovers without losing any of that delicious texture or flavor.

Freezing

If you want to make this tart ahead of time or save leftovers longer, freezing is possible. Wrap the tart tightly in plastic wrap and then in aluminum foil, freezing for up to a month. When ready to eat, thaw it in the refrigerator overnight to ensure the mousse keeps its creamy texture without becoming watery or icy.

Reheating

This mousse tart is best enjoyed chilled and should not be heated, as warming would cause the mousse to lose its silky texture and the crust to soften unappealingly. For the best taste and texture, serve directly from the refrigerator after thawing if frozen.

FAQs

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

While you can experiment with other flaky milk chocolates, the unique texture and melt of Cadbury Flake is key to this recipe’s charm. Using something different may change the mousse’s light, flaky texture significantly.

Is the gelatin necessary in the mousse?

Gelatin is optional but recommended if you want a firmer mousse that holds its shape well, especially in warmer environments or if you plan to transport the tart. Without gelatin, the mousse will still be delicious but slightly softer.

Can I make the biscuit base without baking it?

Yes, you can create a no-bake crust by simply chilling the butter and biscuit crumb mixture in the fridge until firm. However, baking gives a nicer crunch and helps the crust hold together better under the mousse.

How long should the mousse chill in the refrigerator?

A minimum of three hours is best to allow the mousse to fully set and develop its airy yet firm texture. For even better results, chilling overnight works beautifully.

Can I add flavors like coffee or liqueur to the mousse?

Absolutely! Adding a teaspoon of espresso powder or a splash of flavored liqueur (like Baileys or Amaretto) can deepen the flavor profile and complement the chocolate wonderfully. Just fold it into the melted chocolate before combining with the whipped cream.

Final Thoughts

I truly can’t recommend the Cadbury Flake Mousse Tart Recipe enough if you want a dessert that feels fancy yet is surprisingly straightforward. It’s perfect for those days when you want to indulge in something special without fussing over complicated techniques. Once you try it, I bet it will become a staple for celebrations and cozy evenings alike. Go ahead, give it a whirl—you’re in for a blissful treat!

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Cadbury Flake Mousse Tart Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.3 from 57 reviews
  • Author: Emma
  • Prep Time: 15 minutes
  • Cook Time: 10 minutes
  • Total Time: 3 hours 25 minutes
  • Yield: 8 servings
  • Category: Dessert
  • Method: Baking
  • Cuisine: British

Description

This delightful Cadbury Flake Mousse Tart features a crisp digestive biscuit crust filled with a creamy, airy mousse made from rich Cadbury Flake chocolate and whipped cream. Enhanced with optional gelatin for firmness, this no-bake mousse tart is chilled to perfection and topped with delicate flakes of chocolate and fresh berries for an indulgent yet elegant dessert.


Ingredients

Scale

Tart Shell

  • 1 ½ cups digestive biscuit crumbs (or graham cracker crumbs)
  • ½ cup unsalted butter, melted
  • 2 tbsp granulated sugar

Mousse Filling

  • 4 Cadbury Flake chocolate bars (about 35g each)
  • 1 ½ cups heavy whipping cream
  • 1 tsp vanilla extract
  • 2 tbsp powdered sugar
  • 1 tbsp gelatin (optional, for extra firmness)

Decoration

  • 2 additional Cadbury Flake bars, broken into pieces
  • Fresh berries (optional)


Instructions

  1. Prepare the Tart Shell: Preheat your oven to 350°F (175°C). In a mixing bowl, combine the digestive biscuit crumbs, melted butter, and granulated sugar. Stir until the mixture is evenly moistened. Press this mixture firmly into the base and sides of a tart pan, ensuring an even layer forms. Bake in the oven for 8-10 minutes or until the crust turns lightly golden. Remove and let it cool completely before adding the filling.
  2. Make the Mousse: Break the Cadbury Flake chocolate bars into a microwave-safe bowl. Melt the chocolate gently in the microwave by heating in 20-second intervals, stirring between each interval until smooth. Allow the melted chocolate to cool slightly to avoid curdling the cream later. In another bowl, whip the heavy cream with vanilla extract and powdered sugar until stiff peaks form. If using gelatin, first dissolve it in a small amount of warm water, then blend it into the melted chocolate. Carefully fold the whipped cream into the chocolate mixture until smoothly combined and light.
  3. Assemble the Tart: Once the tart shell has completely cooled, pour the prepared mousse evenly over the crust. Use a spatula to smooth the surface. Place the tart in the refrigerator and chill for at least 3 hours to allow the mousse to set firmly.
  4. Decorate and Serve: Before serving, adorn the tart with broken pieces of Cadbury Flake chocolate and fresh berries if desired for a pop of color and fresh flavor. Slice into 8 portions and enjoy this luxurious mousse tart.

Notes

  • For a firmer mousse, gelatin is recommended but can be omitted if you prefer a lighter texture.
  • If digestive biscuits are unavailable, graham cracker crumbs can be used as a substitute for the crust.
  • Chilling time is essential for the mousse to set properly; do not rush this step.
  • Adjust sweetness by varying the amount of powdered sugar in the whipped cream if desired.
  • Fresh berries add a nice contrast but are optional depending on availability and preference.

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