Thanks. The dark ones are from the bottom tray and the lighter ones are from the top tray. I assume that the temp is uneven when my oven doesn't have an air circulation fan.
The cooking time was 12 minutes at 200 C controlled by my PID/SSR box.
It's an easy fix to cook them longer but then they are not gold any more. They are turning more dark broze in colour. This is not a problem if overcooking doesn't hurt the boolits and make them better
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