Finally got back to me.
"220 for the chips. Cooks them fast enough. Didn't take a photo. You'll just have to imagine how good they looked and tasted. Straight from raw is the key - no faffing about with par boiling once, twice, thrice etc.
Oh, yesterday i splashed some sour cream around them once I'd plated them. Cuts through the richness of the chips and cheese."
I do them in the oven all the time, I usually do 220 for 30 mins minimum, from raw.
Fair play if they were cooked in 20mins, they must have been skinny fries or something?

