Yes, it will cut cook potatoes. It will cut raw potatoes, except for sweet potatoes, which you need to cook a little bit.
By Veronica Springhall
It will. They would have to be a little firm.
By Sampson Howell(s)
Like butter. This makes perfectly squared pieces for potato salad or whatever you want to use them for.
By Jared Raman
I have never done This, however I use it to make French fries, it does well with a hard raw potato, since cooked potatoes are soft, I would think that it would work well
By Tony Katte