You can prepare and assemble this cornbread dressing up to 2 days in advance of when you want to serve it, keeping it in the fridge uncooked until you are ready to bake it. If you do this, you may need to add an extra 10 minutes or so to the bake time since you will be starting with a cold dish.u003cbr/u003eu003cbr/u003eHowever, you can also freeze unbaked cornbread dressing, wrapped tightly in plastic wrap, for up to 3-4 weeks. Just thaw in the fridge overnight before baking the next day. Already baked cornbread dressing can also be frozen, then thawed and reheated as normal.