Potatoes Delmonico is a rich, old-fashioned casserole that dates back to the famous Delmonico’s Restaurant in New York. Creamy, cheesy, and deeply comforting, this dish turns simple potatoes into an elegant side worthy of holidays, Sunday dinners, or any meal that needs something special.
Ingredients:
3 pounds russet potatoes, peeled and thinly sliced
4 tablespoons unsalted butter
3 tablespoons all-purpose flour
2 cups whole milk
1 cup heavy cream
1 1/2 cups shredded sharp cheddar cheese
1/2 cup grated Parmesan cheese
1 teaspoon salt
1/2 teaspoon black pepper
1/2 teaspoon paprika
1/2 teaspoon dry mustard (optional but traditional)
1/4 teaspoon nutmeg (optional)
2 tablespoons finely chopped onion or shallot
Optional Topping:
1/2 cup buttered breadcrumbs or crushed crackers
Instructions:
Preheat the oven to 375°F (190°C). Lightly butter a baking dish.
Place the sliced potatoes in a pot of salted water. Bring to a boil and cook for 5 to 7 minutes, just until barely tender. Drain well and set aside.
In a saucepan over medium heat, melt the butter. Add the chopped onion and cook until soft, about 2 minutes. Sprinkle in the flour and whisk continuously for 1 minute to remove the raw flour taste.
Slowly whisk in the milk and cream. Cook, stirring often, until the sauce thickens and becomes smooth.
Remove from heat and stir in the cheddar cheese and Parmesan cheese until fully melted. Season with salt, pepper, paprika, dry mustard, and nutmeg if using.
Layer half of the potatoes in the prepared baking dish. Pour half of the cheese sauce over the potatoes. Repeat with the remaining potatoes and sauce.
If using, sprinkle the buttered breadcrumbs evenly over the top.
Bake uncovered for 30 to 35 minutes, or until bubbly and lightly golden on top. Let rest for 10 minutes before serving.
Helpful Tips:
Slice potatoes evenly so they cook consistently.
Do not overboil the potatoes before baking — they should still hold their shape.
For extra richness, use all cream instead of milk.
Sharp cheddar gives the best flavor, but Gruyère works beautifully as well.
Serving Suggestions:
Serve alongside roasted chicken, steak, ham, or pork chops.
Perfect for holiday meals, potlucks, or Sunday dinners.
Leftovers reheat well and stay creamy.
Potatoes Delmonico is creamy, indulgent, and timeless — a classic casserole that proves simple ingredients can create unforgettable comfort food.