Crush the biscuits into small pieces (not powder, some texture is good).
Toast the chopped walnuts lightly in a dry pan for 3-4 minutes until fragrant.
In a large bowl, mix the crushed biscuits, toasted walnuts, and sugar.
Add Nutella and stir until all the pieces are coated and the mixture holds together.
Form the Cake:
Line a loaf pan or round mold with parchment paper.
Press the biscuit mixture firmly into the pan, smoothing the top.
Refrigerate for at least 2 hours to set.
Prepare the Dark Chocolate Whipped Cream:
Chill a mixing bowl and beaters in the freezer for 10 minutes.
Pour chilled heavy cream into the bowl and start whipping on medium speed.
When cream begins to thicken, gradually add powdered sugar and melted dark chocolate.
Continue whipping until stiff peaks form.
Assemble and Serve:
Remove the biscuit cake from the fridge and gently release from the mold.
Spread or pipe the dark chocolate whipped cream on top.
Garnish with extra chopped walnuts or chocolate shavings if desired.
Slice and serve chilled.
Serving and Storage Tips
Crush the biscuits into small pieces (not powder, some texture is good).
Toast the chopped walnuts lightly in a dry pan for 3-4 minutes until fragrant.
In a large bowl, mix the crushed biscuits, toasted walnuts, and sugar.
Add Nutella and stir until all the pieces are coated and the mixture holds together.
Form the Cake:
Line a loaf pan or round mold with parchment paper.
Press the biscuit mixture firmly into the pan, smoothing the top.
Refrigerate for at least 2 hours to set.
Prepare the Dark Chocolate Whipped Cream:
Chill a mixing bowl and beaters in the freezer for 10 minutes.
Pour chilled heavy cream into the bowl and start whipping on medium speed.
When cream begins to thicken, gradually add powdered sugar and melted dark chocolate.
Continue whipping until stiff peaks form.
Assemble and Serve:
Remove the biscuit cake from the fridge and gently release from the mold.
Spread or pipe the dark chocolate whipped cream on top.
Garnish with extra chopped walnuts or chocolate shavings if desired.
Slice and serve chilled.
Serving and Storage Tips