Heat the oven to 180 C.
Heat a pot on medium heat and add the sugar. Leave the sugar to melt, stirring from time to time, until it melts and becomes liquid caramel. Add the pretzels to the caramel, mix and transfer to a flat tray to cool.
Separate the whites from the yolks in two separate bowls.
In the bowl with egg yolks - add Nutella and beat with the mixer until the composition becomes foamy.
Then beat the egg whites until they become foamy and retain their shape.
Gradually transfer the egg white foam into the Nutella mixture, one by one and incorporate.
Then transfer the entire composition into 4 ramekins.
Bake the pudding in the oven for 20-25 minutes.
While the pudding is baking, whisk the liquid cream until you get a foamy and soft whipped cream.
Break the caramel with the pretzel pieces.
Serve pudding with whipped cream and caramelized pretzel pieces.