Dressing / Stuffing (Gluten-Free)

This recipe comes to us from Oliver.

Celiac.com Sponsor (A12):
½ cup gluten-free margarine
2 cups onion, chopped
2 cups celery, chopped
¼ cup parsley, fresh, chopped
8 oz. mushrooms, chopped
11-13 cups dried out gluten-free bread cubes
1-2 tablespoons poultry seasoning
1-1 ½ teaspoons salt
1-2 teaspoons thyme
½ tsp black pepper
1-2 teaspoons sage, ground
3-4 cups chicken broth
2-4 cups chicken cooked, diced
2 eggs, beaten
1 teaspoons baking powder

Melt margarine in a skillet and sauté onion, celery parsley and mushrooms. Put gluten-free bread cubes in a large bowl. Add all the seasonings and toss well. Pour in broth to make mixture quite moist. Fold in diced chicken. Add eggs and toss together well. Add the baking powder and mix well. Place stuffing mixture in a greased 9 x 13 baking pan and cover with foil. Bake at 350F for 30 minutes, remove foil and continue baking for another 15 to 20 minutes.