Definition of «bun tops»

"Bun tops" refers to the upper part of a bun, specifically the soft and round surface that people typically see and eat.

I ordered the salted caramel French toast, which was more like a sticky bun topped with blackberry jam. (treatsandtrendsblog.com)
On bottom half of bun top with the burger and mozzarella. (wheatfreemom.com)
(If bun tops are very thick, slice bottoms off horizontally before slicing into strips). (pamperedchef.com)
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