ebohatch

I came accross these 2 in my woods, I am in northwest Illinois. I saw them last week, looked them up and I gather they are giant puffballs, the pic shows them next to my size 11 boots. I picked them up yesterday and from all I have read they should be edible. They are all white, when I cut into them if they are still all white I intend to saute them. I am just looking for verification.