Savory Mushroom Sage Stuffing

This is my family's stuffing recipe. I don't actually stuff my turkey. I use this recipe and make a big 9x13 inch pan of this stuff. The bread gets slightly crispy on top and the mushrooms and onions and celery are soft. It is really simple, but one of my all time favorite things to eat!

Ingredients:
14-16 slices hearty white bread (I use Grandma Sycamore's white bread)
2 sticks butter
7-8 celery stalks, chopped
2 medium onions, diced
16-20 ounces button or baby bella mushrooms, sliced
2 tsp. rubbed sage
S & P to taste
1 1/2-2 Cups chicken broth

Directions:
1. Using a serrated knife, cut the bread slices into small cubes. Lay the cubes out on a baking sheet. Dry them out in an oven set to 170 degrees over the course of a few hours or overnight. You want them to be completely dry and crunchy.
2. In a large skillet, melt the butter over medium heat. Add the celery and onions. Saute til just tender. Add the sage and S & P to taste. Add the sliced mushrooms, cook til mushrooms begin to soften.
3. In a large bowl, place the dried bread cubes. Add the warm mushroom mixture. Stir a bit. Then, add about 1 1/2-2 cups chicken broth-depending on how moist you want your stuffing.
4. Place the stuffing in a 9x13 inch baking dish. Cover with foil. Cover with foil and cook for about 30 minutes. Uncover and continue baking until the top becomes slightly crispy and golden.