Ingredients:
- 1/2 loaf sourdough bread
- 1/2 loaf rye bread
- 4 tablespoons unsalted butter plus more for greasing
- 1 cup frozen chopped onions
- 3 stalks celery, chopped
- 2 medium carrots, chopped
- Kosher salt and freshly ground black pepper
- 1 (14-ounce) bag cornbread stuffing
- 2 cups chicken broth
- 1 cup turkey gravy
- 2 large eggs, beaten
- 1 tablespoon poultry seasoning
- 1/2 cup grated Parmesan
