for up to 24 hours—add an extra 10–15 minutes to the covered baking time if it goes into the oven cold.
For a one-pan feel, tuck in a layer of thinly sliced ham or cooked crumbled bacon between the potatoes before you pour on the cream. To make it vegetarian and a bit more veggie-forward, add a layer of thinly sliced mushrooms or blanched broccoli florets under the creamy pour-over. Finally, if you don’t have fresh thyme, dried thyme works well—just use about half the amount, as dried herbs are
