Let the bread slices dry until rough on the outside. If you don't have time to dry the bread, turn your oven to 200 degrees, spread the bread slices on a cookie sheet, and bake for a few minutes until the side up is dry. Flip the bread over and bake the other side until dry. Whole wheat bread takes a little bit longer to dry out than white bread does.
Cut bread into 1-2 inch cubes.
Melt the butter in a stock pot or dutch oven. Cook the onion and celery in the butter until barely soft. Season the mixture with Poultry Seasoning, salt, and pepper.
Stir in bread crumbs until coated. Pour in chicken broth.
Chill and then stuff turkey or bake in a casserole pan at 350 degrees for 40 minutes.