Grandma Mildred's Kickin' Cornbread Stuffing!

Ingredients

• 1 cup (125g) all-purpose flour
• 1 cup (140g) yellow cornmeal
• 1 tablespoon baking powder
• 1 teaspoon salt
• 1/4 teaspoon baking soda
• 1 cup (240ml) buttermilk
• 1/4 cup (60ml) vegetable oil
• 1 large egg
• 1 pound (450g) breakfast sausage, removed from casings
• 1 large yellow onion, chopped (approx. 1 cup)
• 2 stalks celery, chopped (approx. 1/2 cup)
• 1/2 cup (115g) unsalted butter, melted
• 4 cups (960ml) chicken broth, low-sodium
• 1 teaspoon dried sage
• 1 teaspoon dried thyme
• 1/2 teaspoon dried marjoram
• 1/4 cup (60ml) chopped fresh parsley
• 1/4 cup (60ml) chopped fresh sage (optional, for extra flavor)
• Salt and freshly ground black pepper to taste