Mocha Mousse Slice Recipe

Indulge in this irresistible Mocha Mousse Slice! Layers of coffee-soaked sponge fingers, creamy white chocolate, and rich mocha mousse create a dessert sensation. Perfect for chocolate and coffee lovers, this recipe is easier than you think!

Prep Time 60 mins
Cook Time 430 mins
Calories 649.6 kcal
Protein 18g
Rating Be the first
Mocha Mousse Slice 31

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Forktionary editorial kitchen team

The Forktionary Kitchen Team

Adapted from Food.com, then tested & standardized by Forktionary.

Ingredients for Mocha Mousse Slice

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How to Make Mocha Mousse Slice

  1. Line a 23cm square slab pan with foil, ensuring the foil extends over the edges for easy removal.
  2. Arrange a layer of sponge fingers (approximately 150g) to cover the base of the prepared pan.
  3. In a small bowl, combine 1/4 cup strong brewed coffee with 2 tablespoons of water. Brush half of this mixture evenly over the sponge fingers.
  4. Melt 200g of white chocolate in a heatproof bowl set over a pan of simmering water (double boiler). Stir occasionally until smooth. Let cool slightly.
  5. Gently fold in 150ml of whipped heavy cream into the melted white chocolate.
  6. Pour half of the white chocolate mixture over the prepared sponge fingers. Cover and refrigerate for 10 minutes.
  7. Repeat steps 2-6 with the remaining sponge fingers, coffee mixture, and white chocolate mixture.
  8. Prepare the mocha mousse (see instructions below). Spread evenly over the biscuit layers. Cover and refrigerate for at least 3 hours, or until firm.
  9. **Mocha Mousse:** Melt 150g dark chocolate and 50g unsalted butter in a heatproof bowl set over a pan of simmering water. Stir until smooth and cool slightly.
  10. Whisk together 2 large egg yolks and 2 tablespoons of coffee liqueur (optional).
  11. Gradually whisk the egg yolk mixture into the melted chocolate mixture.
  12. In a separate bowl, beat 200ml heavy cream until stiff peaks form.
  13. Gently fold the whipped cream into the chocolate mixture in two additions.
  14. Once the mousse is firm, carefully lift the slice from the pan using the foil overhang. Slice and serve.

Nutrition Information (Approximate per serving)

Sodium

5 g

Sugar

85g

Fat

180g

Carbs

11g

Frequently Asked Questions

How long does it take to make Mocha Mousse Slice?

Mocha Mousse Slice takes about 490 minutes from start to finish — roughly 60 minutes to prepare and 430 minutes to cook.

How many calories are in Mocha Mousse Slice?

Mocha Mousse Slice has approximately 649.6 calories per serving, with about 18 g protein, 11 g carbohydrates and 90 g fat.

What ingredients do I need for Mocha Mousse Slice?

The key ingredients for Mocha Mousse Slice are Ladyfingers, Instant Coffee, Boiling Water, White Chocolate, Cream, Dark Chocolate. See the full list with measurements above.

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