In a saucepan, mix the sweetened condensed milk, cream and powdered milk.
Turn off the heat and mix well until the mixture is smooth.
Then turn the heat on to medium temperature and stir until the cream thickens.
Transfer the cream to a refrigerator-safe dish, cover
with plastic wrap that comes in contact with the surface, and let cool to
room temperature or refrigerate to speed up the process.
In another bowl, beat the whipped cream until stiff
Once the mixture has cooled, mix it with the whipped cream until you obtain a homogeneous mixture.
Add the chocolate flakes and mix gently.
Transfer the mixture to a serving dish, decorate with
the chocolate bar and refrigerate for 3 to 4 hours.