Cheesy Delmonico Potatoes Casserole is creamy, cheesy, and oh-so-comforting! This dish features tender potatoes smothered in a rich cheese sauce, making it a family favorite at any meal.
I love how easy it is to prepare! Just layer the potatoes and cheese, pop it in the oven, and let the magic happen. You’ll be tempted to eat it straight from the dish! 🧀🍽️
Key Ingredients & Substitutions
Potatoes: Use starchy potatoes like Russets for this casserole. They get soft and creamy. If you can’t find them, Yukon Golds are a great alternative. They have a buttery flavor and work well too.
Cheddar Cheese: Sharp Cheddar gives a strong flavor, which I love. If you want something milder, swap it for mild or medium Cheddar. You can also experiment with Pepper Jack for a spicy kick!
Sour Cream: This adds creaminess and a slight tang. Greek yogurt can be a healthy substitute, or just use more cheese if you’re not a fan of sour cream.
Onion: A small onion adds flavor, but if you’re sensitive to onions, you can use shallots or skip it altogether. Leeks are another tasty option if you have them on hand.
How Can I Make the Perfect Cheese Sauce?
The cheese sauce is crucial for a creamy casserole. Start by making a roux with butter and flour. This thickens the sauce nicely. Stir well to avoid lumps and cook just long enough to remove the raw flour taste.
- Melt butter over medium heat, then add chopped onion and cook until softened (about 3 minutes).
- Add flour and stir constantly for 1-2 minutes.
- Gradually whisk in milk, cooking until it thickens (about 5 minutes).
- Finally, remove from heat and mix in 2 cups of shredded Cheddar until smooth.
Remember to keep stirring, and don’t rush this step! This will make your sauce perfectly creamy and delicious.
How to Make Cheesy Delmonico Potatoes Casserole
Ingredients You’ll Need:
For the Casserole:
- 4 cups peeled and thinly sliced potatoes (about 4 medium potatoes)
- 1 small onion, finely chopped
- 3 cups shredded sharp Cheddar cheese, divided
- 3 tablespoons unsalted butter
- 3 tablespoons all-purpose flour
- 2 cups milk (whole milk preferred)
- 1 cup sour cream
- 1 teaspoon salt
- 1/2 teaspoon black pepper
- 1/4 teaspoon garlic powder
- 1/4 teaspoon paprika (optional)
- 2 tablespoons fresh parsley, chopped (for garnish)
How Much Time Will You Need?
This recipe takes about 15 minutes of prep time, followed by 45-50 minutes of baking. You’ll need a total of around 1 hour, plus a bit of time for the casserole to rest before serving. It’s a perfect dish for gatherings or family dinners!
Step-by-Step Instructions:
1. Prepare Your Oven and Dish:
Start by preheating your oven to 350°F (175°C). While it’s heating, lightly grease a 9×13-inch casserole dish or a dish of similar size. This will help prevent sticking!
2. Cook the Potatoes:
In a large pot, bring salted water to a boil. Carefully add the thinly sliced potatoes and let them boil for about 5 minutes. You want them to be slightly tender but not fully cooked. After 5 minutes, drain the potatoes and set them aside.
3. Make the Onion and Cheese Sauce:
In a medium saucepan, melt the butter over medium heat. Once melted, add the finely chopped onion and cook until it’s soft—this should take about 3 minutes. Stir in the flour and keep stirring for 1-2 minutes to make a roux. Now, gradually whisk in the milk, cooking and stirring constantly until the sauce thickens and becomes smooth—this takes about 5 minutes. Remove the saucepan from heat and stir in 2 cups of shredded Cheddar cheese until it’s melted and creamy.
4. Combine the Ingredients:
Add salt, pepper, garlic powder, sour cream, and half of the cooked potatoes to the cheese sauce. Gently fold everything together, being careful not to break up the potatoes too much.
5. Assemble the Casserole:
Pour the potato mixture into the greased casserole dish, spreading it out evenly. Then, arrange the remaining sliced potatoes over the top in a single layer. Finish by sprinkling the last cup of Cheddar cheese over the top, and add a sprinkle of paprika if you like.
6. Bake to Perfection:
Place the casserole in the preheated oven and bake uncovered for about 45-50 minutes. You want the top to be golden brown and bubbly. Once it looks delicious, remove it from the oven and allow it to rest for 5-10 minutes before serving.
7. Serve and Enjoy!
Garnish your Cheesy Delmonico Potatoes Casserole with chopped fresh parsley for a pop of color. This creamy, cheesy dish with its golden crust is sure to be a hit at your table. Enjoy!
Can I Use Different Types of Potatoes?
Yes! While Russet potatoes are ideal for their starchiness and creaminess, you can also use Yukon Golds for a buttery flavor. Just ensure they are peeled and thinly sliced to cook evenly.
Can I Make This Casserole Ahead of Time?
Absolutely! You can prepare the casserole up to a day in advance. Simply assemble it, cover tightly with plastic wrap, and refrigerate. When ready to bake, let it sit at room temperature for about 30 minutes before placing it in the oven.
How Should I Store Leftovers?
Store any leftovers in an airtight container in the refrigerator for up to 3 days. To reheat, warm gently in the oven or microwave until heated through, adding a splash of milk if it seems a bit dry.
Can I Add Other Ingredients?
Certainly! Feel free to add cooked bacon, ham, or vegetables like broccoli or spinach for extra flavor and nutrition. Just remember to adjust cooking times if necessary!
