these came out okay but they were really soft after 15 minutes on each side at 425 degrees and i couldnt keep them any longer because they were starting to burn..
any suggestions?
of course, it'll depend on how thick your "fries" are sliced....
I just made these last night (roughly based on this recipe). I cut them into wedges about 3 inches long and 1/4 inch thick, set my oven to 400 F, and placed them on the middle (not top) rack. I gave them about 15 minutes on one side, flipped them, and put them back in for what was going to be another 10...but I checked them after 5, and some of the slightly thinner ones had started to burn.
So, I'd recommend a slightly lower oven temp, 10 minutes on one side, and a closely-monitored 10 minutes (more if needed) after flipping the fries AND rotating the baking sheet.