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British Chocolate Biscuit Cake

A classic no-bake British Chocolate Biscuit Cake made with crunchy tea biscuits, rich dark chocolate, butter, and sugar. Perfect for celebrations, afternoon tea, or an elegant chocolate dessert.
Prep Time 20 minutes
Chill Time 3 hours
Total Time 3 hours 20 minutes
Course Dessert
Cuisine British
Servings 10 slices
Calories 520 kcal

Equipment

  • 8-inch cake pan
  • Plastic wrap
  • Mixing Bowl
  • Electric mixer or whisk
  • Rubber spatula
  • Cooling rack
  • Offset spatula

Ingredients
  

For the Cake

  • 8 oz 225g British tea biscuits, roughly broken
  • 6 oz 170g unsalted butter, softened
  • 6 oz 170g caster sugar
  • 6 oz 170g dark chocolate, melted

For the Chocolate Topping

  • 8 oz 225g dark chocolate, melted

Optional Garnish

  • Mini chocolate chips
  • Chocolate sprinkles
  • Chocolate curls

Instructions
 

  • Grease an 8-inch cake pan and line it with plastic wrap, leaving an overhang for easy removal.
  • Break the tea biscuits into small bite-sized pieces and set aside.
  • In a large bowl, cream together the softened butter and sugar until light and fluffy.
  • Add the melted dark chocolate and mix until smooth and fully combined.
  • Fold in the biscuit pieces until evenly coated with the chocolate mixture.
  • Transfer the mixture to the prepared pan and press down firmly to remove air pockets.
  • Cover and refrigerate for at least 3 hours or overnight until firm.
  • Carefully remove the cake from the pan and place it on a wire rack over parchment paper.
  • Pour the melted chocolate topping over the cake, spreading evenly over the top and sides.
  • Decorate with chocolate chips, curls, or sprinkles if desired.
  • Let the chocolate topping set before slicing and serving.

Notes

  • McVitie's Digestive Biscuits are traditionally used for authentic British flavor.
  • Chill overnight for the best texture.
  • Allow the cake to sit at room temperature for 30 minutes before serving for easier slicing.
Keyword British Chocolate Biscuit Cake, No Bake Chocolate Cake, Royal Chocolate Biscuit Cake