Melt two sticks of butter in a skillet over medium heat
Add celery and saute until soft about 8-10 minutes
Add onion to the skillet and cook until translucent and season with salt and pepper. Remove from heat
Preheat oven to 350
Place torn bread pieces on a baking sheet and bake for about 10 minutes or until bread is toasted. Use two baking sheets if needed
Pour celery, onion, and butter mixture over the bread
Sprinkle the poultry seasoning evenly over the bread
Season with salt and pepper
Slowly add in the chicken broth while you mix everything together with your hand
Make sure there are no dry pieces of bread, everything should be moist
Transfer bread mixture to a casserole dish and cover with foil and bake at 350 for 35-40 minutes