Traditional Southern Cornbread Dressing

butter

medium onion , chopped

stalks (ribs) of celery , chopped

cooked, crumbled stale cornbread

dry, toasted bread , crumbled (sliced bread, leftover biscuits or rolls)

kosher salt , or to taste

Cajun seasoning (like Slap Ya Mama ), or to taste, optional

freshly cracked black pepper , or to taste,

sage (or Bell's seasoning), or to taste, optional

poultry seasoning

turkey gravy (canned is fine)

to 6 cups of turkey or chicken broth or stock, more or less

large eggs , beaten