
Start by pouring the milk into a large saucepan.
Add the cocoa powder, the sugar, the cornstarch, the powdered milk, the instant coffee and the vanilla extract.
Turn on the heat to medium-low and stir everything well until it becomes a smooth and even cream.
Then to assemble the recipe, spread this cream over the milk biscuits, putting them together.
Next, pour the remaining cream over the top and spread it evenly.
Add chocolate shavings to taste.
Place it in the refrigerator and let it chill for at least 1 hour.
Serve.