As I have said before we get potatoes once a year (we tried to grow some but the prairie dogs ate the all) They will keep for quite a while but not all year. So I dry a bunch of them to use in stew, scalloped and to mash. I also freeze a few for frying. I am going to try and rehydrate some this year to fry and see how that works.
The first thing is get your potatoes these potatoes were so big,
Slice into about 1/8 inch slices I use my mandolin which I love.
I add some ice to help keep the water cold so they will not keep cooking.
Drain well, I drain mine then put on a towel to help dry them off a little better.
I forgot to take a picture of that.
Make sure they are dry any little bit of moister will cause them to mold.
1 cup of dried potatoes will equal 1 to 1 ½ cups cooked potatoes.