Chocolate Cream
In a saucepan over medium to low heat, add the butter, the hazelnut cream and stir until everything is completely melted.
Add the milk and keep stirring until smooth.
In a large bowl, add the milk biscuits, breaking them into smaller pieces.
Add the mixture we prepared and mix until well combined.
Transfer the entire mixture to a removable-bottom baking pan lined with parchment paper, spread it out until it forms an even layer and set aside.
Now, in a large saucepan, add the sugar, the wheat flour, the cornstarch and the milk.
Turn on the heat to medium-low and mix everything well until it thickens slightly.
Next, add the butter, the vanilla essence and mix until smooth.
Pour the cream over the biscuits in the baking pan, place it in the refrigerator and let it chill for at least 1 hour.
After this time has passed, in a saucepan, add the sugar, the cornstarch, the cocoa powder, the milk and the semi-sweet chocolate.
Turn the heat to medium-low and stir everything thoroughly until the mixture is smooth and slightly thickened.
Next, pour the cream over the dessert we prepared and spread it out.
Place the dessert in the refrigerator and let it chill for at least 2 hours.
Serve.