Cover the baking dish with aluminum foil and bake in the preheated oven for about 45-50 minutes. Then, remove the foil and continue baking for an additional 15-20 minutes, or until the top is golden brown and the potatoes are tender when pierced with a fork.
Serve:
Remove the Potatoes Delmonico from the oven and let it cool slightly before serving. Garnish with chopped fresh parsley for a burst of color and added freshness.