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Milka milk chocolate bars: 2 pc, for garnish
Prep Time, Cooking Time, and Total Time
Prep Time: 20 minutes
Chill Time: 3-4 hours
Total Time: 4 hours 20 minutes
Steps to Make the Chocolate Walnut Biscuit Cake
Step 1: Prepare the Base Mixture
In a medium saucepan, combine the milk, sugar, vanilla sugar, and cocoa powder.
Heat over medium-low, stirring constantly, until the sugar dissolves and the mixture is smooth. Avoid letting it boil.
Add the softened butter and continue stirring until it melts completely. Set the mixture aside to cool slightly.
Step 2: Assemble the Biscuit Layers
Break the vanilla biscuits into smaller pieces (not crumbs) and place them in a large mixing bowl.
Crush the wafers into small chunks and mix them with the biscuits.
Add the finely chopped walnuts to the mixture, ensuring they’re evenly distributed.
Step 3: Combine with the Cocoa Mixture
Gradually pour the warm cocoa mixture over the biscuits, wafers, and walnuts.
Use a wooden spoon or spatula to gently fold the ingredients together, ensuring every piece is coated with the chocolate mixture.
Step 4: Shape the Cake
Line a rectangular cake pan or a springform pan with plastic wrap, leaving enough overhang to cover the top of the cake.
Transfer the mixture to the pan, pressing it down firmly with the back of a spoon or your hands to create an even layer.
Cover the top with the overhanging plastic wrap and refrigerate for 3-4 hours or until firm.
