This flatbread has a lot of sesame seeds sprinkled on top.
Tips
culture
The idiom 芝麻开门 (zhīma kāi mén, 'Open Sesame') comes from the Arabian Nights story of Ali Baba. 捡了芝麻丢了西瓜 (picking up sesame seeds but losing the watermelon) means focusing on trivial things while missing what's important.