I prepare cornbread a day in advance, crumble and allow it to dry throughout the day or overnight. My mom would add stale bread, crackers, etc., to enhance the flavor and texture (you can add gluten free options as well).
Always adjust the seasoning to taste. I prefer more poultry seasoning and salt, and a small amount of sage. After you mix all of the ingredients, taste for seasoning.
I typically add more liquid when mixing the cornbread with the other ingredients as I do not want my dressing dry.
Each time I make this recipe I double or triple as we typically have more guests for Thanksgiving. This dish also freezes well.
I often add this step. After I saute the vegetables, I transfer to a Dutch Oven, add the broth and bring to a simmer, then add to dry ingredients. Though not necessary, this step certainly creates more flavor.