The porridge in that photo looks a bit odd, don’t you think?
The "porridge" in that photo looks like muesli to me.
"Flocons d'Avoine" means "oat flakes", not porridge (which would be "Le Porridge", or maybe "La Bouille"), so Dabbsy's photo is actually a common misuse of flapjack ingredients.
Mmm ... flapjack.