Bake at 375 degrees for 12 minutes.
After 12 minutes, take the baking dish out of the oven. With your spatula, toss the stuffing so that bread cubes that were on the bottom of the baking dish are now on the top. Don’t be too much of a perfectionist about it, just do your best to give some other bread cubes a chance to be at the top of the baking dish.
Now take the butter cubes and evenly distribute them on top of the stuffing. (Skip this step if keeping the stuffing vegan.)
Place the stuffing back in the oven, and bake for another 5 minutes.
Take the stuffing out of the oven. Flip once more and taste for texture. If you used a heartier bread like ciabatta, or if you prefer a softer stuffing, then you don’t need to cook the stuffing any longer, and your stuffing is done and ready to serve!
If you used a softer bread, or if you prefer your stuffing to be a little crispier, then put it back in the oven and cook for an additional 5 minutes.