I haven't seen any mention of this, but Chefs Waffle in Yonghe district is pretty popular with the locals.
There are long lines most every day at
No. 202, Ānlè Road, Yonghe District, New Taipei City, Taiwan 234 (near the Yong'an MRT on the Nanshijiao line).
+886 2 8660 1887
It is actually between Xiuan street, and Lane 198 Ānlè Road.
It opens at 3pm and close whenever the batter runs out (usually around 7pm).
The place is pretty small with only a few tables, but many people take it to go and eat at the park across the street.
The specialty waffles might suit the non-local sweet taste-buds as well, which is why I'm posting it here.