STEP 1 :
Melt butter in a skillet; add the onions and celery and saute until tender.
STEP 2 :
Combine toasted bread and cornbread in a large bowl and mix.
STEP 3 :
Add onions and celery plus their cooking liquid, the salt, pepper, sage, and poultry seasoning and mix thoroughly.
STEP 4 :
Using a bulb baster, add just enough turkey giblet broth to make a very moist mixture, then stir in the eggs and scrape the dressing into a large greased baking pan or dish.
STEP 5 :
Bake in 400 degree F oven until dressing is nicely browned, about 30-40 minutes.