Grandma Dean's Chicken and Dressing

INGREDIENTS

• 1 (2 1/2-pound) rotisserie chicken, skinned, boned, and shredded (about 4 cups)
• 6 cups coarsely crumbled cornbread
• 8 (1-ounce) firm white bread slices, torn into pieces
• 2 (14-ounce) cans chicken broth
• 2 (10 3/4-ounce) cans cream of chicken soup
• 1 medium onion, chopped
• 3 celery ribs, chopped
• 4 large eggs, lightly beaten
• 2 teaspoons ground sage
• 1/2 teaspoon pepper
• 1/4 teaspoon salt
• 1/2 cup butter, softened