Put the biscuits in a large zipped bag. Use a rolling pin to smash the biscuits into small pieces then transfer into a bowl.
In a saucepan, heat heavy cream and butter until the butter melts. Then turn off the heat and put the chocolate chips in the hot mixture, whisk until melts.
Pour the chocolate mixture over the biscuits, mix well until all the biscuits are coated with chocolate.
Transfer the mixture into a 20cm springform (lined with parchment paper) then refrigerate for 1-2 hours.
Next, take the cake out of the springform, sprinkle powdered sugar on the top then serve it with blueberries and raspberries.
Using semi-sweet chocolate makes it sweet enough that you will not need to add sugar to this recipe. However, if you like to use dark chocolate, you may need to add ¼ cup of sugar to the chocolate sauce.
You can add chopped nuts such as pistachio, walnuts, almond, or hazelnuts.
If you like your cake more chocolaty, you can top it with a layer of chocolate ganache or melted chocolate after cooling it down. Afterwards, put it in the fridge for another 2 hours.
You can top this no-bake cake with any fresh fruits you like.
You can sprinkle some cocoa powder on top of the cake instead of powdered sugar.
Coconut oil is a perfect substitution for butter in this recipe.
Nutella Lazy Cake: Using Nutella is an amazing addition to this cake. To do that, you need to mix; ¼ cup butter, ⅔ cup condensed milk, 5 tablespoon cocoa powder, ½ cup Nutella, and 2 tablespoons of sugar. Mix all well, then pour over the biscuit crumbs.Condensed Milk Lazy Cake: Another amazing variant of making Lazy Cake is using Condensed milk. To do that, mix ½ cup melted butter, a can of condensed milk, and 5 tablespoons of cocoa powder. Mix well with the biscuit crumbs. Then put in the springform and refrigerate.Mixed Nuts lazy cake: Nuts go so well with this Chocolate Biscuit Cake. However, adding mixed nuts to this Lazy Cake Recipe elevates it and gives it more crunchiness. Also, you can add nuts along with some raisins and shredded coconut.Peanut Butter Lazy Cake: For peanut butter lovers, adding ⅓ cup of crunchy or smooth peanut butter to this cake will give it a fantastic flavour.