Hands up- who doesn't like Taiwanese hawker food? Recently went to this food fair held at 斗母宫. This is their official Facebook page.
Look at the wonderful stalls!
Among the popular snacks-
Lord of the fries.
It's indeed one of the best snacks around. It's about 20cm long. Very cripsy on the outside, coated with a layer of spicy sauce. And a stark contrast of soft inside.

Mouthwatering curry fish balls! I feel like eating the whole pot!
Spitfire mozzarella chicken
Designed for cheese lovers. Just taste like all the most sinful food combined. A thick layer of melted cheese coating fried popcorn chickens with French fries as the base.
Juicy 爆浆丸
Basically means pork balls with juicy interior. Similar to the concept of Xiaolongbao.
And nobody shall leave without tasting fried oysters simply because they are huge and so iconic of Taiwanese street food.
The other symbolic food is definitely stinky tofu. The one sold here is infused by tea. Not for the fainthearted.
I rate it 7/10 (it's great that one can satisfy all the cravings but the price is a tad too expensive).