add breasts and cubes to casserole dish
fill casserole dish half w/ water
add salt & pepper, rings from two 1/2 inch slices of an onion
foil cover, bake @ 375 for 1 to 1.5 hours
let cool, then shred chicken into bowl w/ fingers
add celery, 1/3 to 1/2 of diced onion, salt & pepper
add Miracle Whip until mixture is as wet as desired