using a large pot, cook chicken breast, remove chicken and set aside to cool
add soup and pepper to water and bring to boil. while waiting on water to boil, add flour and buttermilk in a bowl, mix and add more buttermilk if needed to make a dry dough
sprinkle flour on counter top and add about half of the dough.
roll out to a thin layer and cut into 1x1 squares.(i use a rocking pizza cutter, its a lot faster and easier)
add more flour and scrap around covering each dumpling with flour to keep from sticking.
when water is boiling, add about 1/3 of the dumplings and cook 5-7 min,stir gently to separate dumplings. have a LG bowl ready for dumplings when done, using a spoon with holes, or a small strainer remove from water and place in bowl....repeat till all dough is cooked.
add sour cream and gravy powder to water, using whisk, consonantly stirring cook till thickened remove from heat add water if to thick, add salt and pepper to taste.
take chicken breast, and pull or cut into bite size pieces and add to dumplings. pour enough juice over dumplings to cover, stir well, add more if needed.