baked potato soup

this was a request made by my sweet neighbor Terrie whose husband loves potato soup.  i got this one years ago when i lived in Texas.  i used to be in a bunco group and this was a favorite that one of my friends served.  be forewarned, like a lot of my recipes, though it may be all natural and taste amazing, it is far from being low fat.  enjoy!

BAKED POTATO SOUP

4 medium baked potatoes with skins (i usually bake them in the morning while making breakfast so i don't forget)
6 slices lean bacon
3 green onions finely diced
1/2 cup celery finely chopped
1 can chicken broth
1 can water
1/2 tsp pepper
1/2 tsp salt
1 tsp dried parsley
instant mashed potatoes (yes, i have found all natural instant potatoes)
1 pint half & half

dice baked & cooled potatoes.  cut bacon into 1/2" bits and saute in a large pot.  remove bacon leaving drippings.  in same pot, saute the celery & onions.  add broth, water, salt, pepper and parsley.  bring to a simmer.  stir in potatoes.  simmer for 5 - 10 minutes.  add potato flakes a little at a time until fairly thick.  when it is the consistency you like, add cream slowly and stir.  allow to heat, but NOT boil.  serve with the bacon bits, shredded cheddar and sour cream.