Occasionally I weaken and have some fried potatoes (commonly known as chips in the UK).
I have been buying frozen chips, but usually they have extra stuff on them so that they also work as oven chips. Which tends to crud up the oil after a time.
I recently tried the old fashioned way. Peel potatoes. Cut into chips. Fry part way then drain, cool, freeze. Take out of the freezer and lob (carefully) into the chip pan.
These turned out a bit more like traditional hand cut chips cooked from fresh.
I looked at pricing, which is where my DIY speculation came in.
From Iceland:
Straight cut chips (1.25 kg bag) £0.80/kilo White potatoes (2.5 kg bag) £0.60/kilo
Once you have peeled the potatoes (guess 10% loss of weight) the prices are so close that it hardly seems worth the effort of peeling, chipping, and part cooking.
Although, ultimately, taste may win out. Again I assume that the frozen chips use the cheapest potatoes and some varieties may give a better all round chipping experience.
On the gripping hand chip shops sell a big portion of chips for not very much, so I must buy a (large?) portion of chips and then weigh it to see how it compares. Buying pre-fried chips for freezing might be an interesting option.
I am working on the assumption that chip shops buy in bulk (either pre peeled and cut or they peel and cut using mechanisation on site) which should bring the up front cost down.
Then again I could just have a curry.
Cheers
Dave R