Overview in viewport: https://i.imgur.com/cQ0tnkt.png
Top part of Particles properties: https://i.imgur.com/RRFSFwj.png
Outliner overview: https://i.imgur.com/YKWGV8g.png
Look at the short sprinkles. They are clustered on the left side and right side of the donut. Maybe something with the Count settings? Not too sure.
Part 2 level 2 of the tutorial https://www.youtube.com/watch?v=aZ5ungDgFNc