It’s called a Spice Bag. It was made in a chinese-take-away restaurant here in Dublin, Ireland to sell to people going home after drinking.

It’s bits of shredded deep fried chicken, sauteed peppers and chips/french fries/pommes in a foil-lined paper envelope style pocket bag you hold and eat with a fork.

Yes, Ireland is home to a chinese takeaway delicacy: https://en.m.wikipedia.org/wiki/Spice_bag