2 Tablespoons unsalted butter
3 celery ribs, finely chopped
1-1/2 medium onions, finely chopped
3/4 pounds gf Italian sausage
4-1/2 cups cubed gf french bread
20 pitted prunes, coarsely chopped (about 10 ounces)
1-1/2 medium Golden Delicious or Granny Smith apples - peeled, cored and coarsely chopped
2 Tablespoons finely chopped Italian parsley
2 Tablespoons finely chopped fresh sage
3/4 teaspoons salt
1/2 teaspoon freshly ground black pepper
1/2 teaspoon freshly grated nutmeg
2 large eggs, lightly beaten
3/4 cups gf chicken stock