firstly, break into small pieces 458 grams parle-g or any digestive biscuits / tea biscuits.
in double boiling method, melt 2/3rd cup thickened cream, ½ cup sugar, 1 tbsp butter and whisk till butter melts completely.
additionally add ½ cup cocoa powder and whisk smooth.
keep whisking till the mixture turns smooth and silky.
pour the prepared chocolate mixture over biscuit pieces.
add in 1 tsp vanilla extract, 5 almonds and 5 walnuts.
mix well combining everything.
transfer the mixture into 8 inch springform cake pan.
level up and press tight with the help of a spoon making sure the base is tight.
keep in refrigerator for 30 minutes, allowing to set.
meanwhile prepare the chocolate sauce by melting 150 grams dark chocolate in double boiler method.
additionally add ½ cup thickened cream and whisk smooth.
keep whisking till the mixture turns smooth and silky.
pour the prepared chocolate sauce into prepared biscuit cake.
level out by tapping slightly.
refrigerate for 4 hours or more till the chocolate sauce sets completely.
finally, melt white chocolate and decorate the parle-g biscuit cake before serving.