Common ingredient in cereal bars (4)

I believe the answer is:

oats

(Other definitions for oats that I've seen before include "Wild ones are sown in youthful excess" , "A cereal crop" , "Young folk might sow wild ones" , "Food for horses and Scots (said Dr Johnson)" , "Seed grasses" .)

I've seen this clue in The New York Times.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.