system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How can hot dog buns be cut all the way through but also stuck together in the package so they have to be torn apart?
gpt
The buns are baked in pairs, hence they stick together, they are then split from the 2 outside edges. 

The left bun is cut along the left side and is joined on the right side. Right bun is cut on right edge, joined on left. They are rolled separately as dough, but join while the dough rises.