

Dark brown sugar should only change the flavor a bit, since it just has more molasses added to the sugar (but I guess it could change the texture a bit in a small batch).
The recipe probably assumes a regular oven, not a a fan (convection) oven. I’m not sure about yours, but our convection oven has instructions for lowering the temperature from what the recipe calls for (25 degrees lower F, so about 4 degrees 14 degrees C) if using the fan.
Also, if you don’t already have one, you might want to get an oven thermometer. I’ve seen a lot of ovens that don’t actually cook at the temperature they are set to on the knob, so having a thermometer in the oven that you can check and make adjustments until the oven temperature is where you need it to be can help a lot.










Yep, bad conversion on my side … corrected.
I’ve had both … our current is a convection oven / microwave combo, that has no option to disable the fan (we also have a regular oven). I think our last oven that had a convection feature also had an option to turn the fan on separately, but it’s been a long time.