In the image below, Captain America is hugging the Winter Soldier while telling Stark and Banner
... I have my own secret club now
Cap's club is Army Bros so I'm assuming that implies Stark and Banner are Science Bros?
Stark has a bottle of coke and some mentos. So you dump the mentos in the coke and you get a reaction, we've all seen / done that.
Banner has some nutella.
What's the nutella for?
Is there some viral science experiment involving nutella and I've just never heard of it?
Or is there some canon reason Bruce is holding the nutella?
Banner really likes hazelnut sandwich spread?