This bar is called a Tronky and is from Italian chocolate makers Ferrero. I am a big fan of Ferrero products, especially Nutella and Raffaello!
A Tronky is a crunchy wafer filled with a hazelnuts and chocolate filling. It weighs just 18g and contains only 100 calories. It is around the size of one stick of a Kinder Bueno (also made by Ferrero).
The inside is delicious, it is basically Nutella with little pieces of crunchy hazelnut. I really enjoyed the thick chocolatey filling.
The Tronky was very nice but I couldn't help thinking that it is a poor man's Ferrero Rocher. Tronky seems to be designed as a light snack at 100 calories but for 74 calories, I can have a chocolate covered yummier version of this in the form of a proper Ferrero Rocher! Even though a Ferrero Rocher is smaller, I would still chose one of those over a Tronky every time!