Creamy Cheesy Potatoes With Cornflakes

This post may contain affiliate links. Read our Disclaimer. Leave a Comment ★★★★★

Creamy Cheesy Potatoes With Cornflakes

This cheesy potatoes casserole is the ultimate comfort food side dish, featuring a rich, creamy cheese sauce and a delightfully crunchy cornflake topping. It pairs wonderfully with simple weeknight dinners or holiday feasts and comes together in just over an hour. You’ll love how the tender potatoes soak up the savory, cheesiness for a truly irresistible dish.

How to Make Cheesy Potato Casserole

I first fell in love with this style of cheesy potato bake at a family potluck years ago, and it instantly became a staple in my own home. There’s something so comforting about the combination of creamy sauce and crisp topping that feels like a warm hug on a plate. I often serve it alongside a hearty Swiss chicken casserole or a fresh creamy vegetable soup for a complete, satisfying meal. It’s the kind of dish that makes any gathering feel special.

The recipe itself is wonderfully straightforward, transforming simple ingredients like shredded cheddar and russet potatoes into a spectacular side. Whether you’re preparing a cozy family supper or contributing to a festive spread, this easy cheesy potatoes recipe is always a crowd-pleaser. The aroma of garlic and onion powder wafting from the oven is simply unforgettable.

Why This Cheesy Potato Casserole Is Irresistible

  • Creamy, Dreamy Texture: A from-scratch cheese sauce ensures every bite is luxuriously smooth and rich.
  • Perfectly Balanced Crunch: The buttery cornflake topping adds a wonderful textural contrast to the tender potatoes.
  • Effortless Preparation: With simple steps and common ingredients, this casserole is surprisingly easy to assemble.
  • Crowd-Pleasing Favorite: Its classic flavors are guaranteed to be a hit with both kids and adults alike.

Ingredients for Perfect Homemade Cheesy Potatoes

Be sure to see the recipe card below for the full listing of ingredients, instructions, notes, and estimated nutritional information.

  • Russet Potatoes: Their starchy texture is ideal for absorbing the creamy sauce without becoming mushy.
  • Sharp Cheddar Cheese: Freshly shredded from a block melts better and delivers a more potent cheesy flavor.
  • Sour Cream: Adds a delightful tang and contributes to the sauce’s luxurious creaminess.
  • Whole Milk: Provides the base for a rich and smooth cheese sauce.
  • Butter and Flour: These form the roux that thickens the sauce to the perfect consistency.
  • Garlic & Onion Powder: These pantry staples build a savory, aromatic foundation for the dish.
  • Cornflakes: Crushed cornflakes create that signature, irresistible crispy topping.

Easy cheesy potatoes

Cheesy Potatoes

450kcal

Prep 20 minutes
Cook 45 minutes
Total 1 hour 5 minutes
Master the ultimate comfort food with these creamy baked cheesy potatoes, topped with a golden cornflake crust for the perfect crunchy contrast.
Servings 6 servings
Course Dinner, Side Dish
Cuisine American

Ingredients

Main Ingredients
  • 2 pounds russet potatoes peeled and diced into 1/2-inch cubes
  • 1/2 cup unsalted butter divided
  • 1/4 cup all-purpose flour
  • 2 cups whole milk
  • 1 cup sour cream at room temperature
  • 1 tsp salt
  • 1/2 tsp black pepper
  • 1/2 tsp garlic powder
  • 1/2 tsp onion powder
  • 2 1/2 cups sharp cheddar cheese shredded, divided (2 cups for sauce, 1/2 cup for topping)
  • 1 1/2 cups cornflakes crushed

Equipment

  • oven
  • 9×13-inch baking dish
  • large pot
  • saucepan or Dutch oven
  • whisk
  • knife
  • cutting board
  • measuring cups
  • measuring spoons
  • mixing bowl
  • small bowl

Method

  1. Preheat your oven to 375 degrees Fahrenheit. Lightly grease a 9×13-inch baking dish and set it aside.
  2. Place the diced potatoes in a large pot and cover them with cold water by about one inch. Bring the water to a boil over medium-high heat, then reduce the heat to a simmer and cook until the potatoes are tender when pierced with a fork, approximately 10 to 12 minutes. Drain the potatoes well and set them aside.
  3. In a large saucepan or Dutch oven, melt 1/4 cup of the unsalted butter over medium heat. Whisk in the 1/4 cup of all-purpose flour and cook for one minute, whisking constantly, to form a pale roux.
  4. Gradually whisk in the 2 cups of whole milk until the mixture is smooth. Continue to cook, whisking occasionally, until the sauce thickens slightly, about 3 to 5 minutes.
  5. Remove the saucepan from the heat. Stir in the 1 cup of sour cream, 1 teaspoon of salt, 1/2 teaspoon of black pepper, 1/2 teaspoon of garlic powder, and 1/2 teaspoon of onion powder until fully combined. Add 2 cups of shredded sharp cheddar cheese and stir until the cheese is completely melted and the sauce is smooth and creamy.
  6. Gently fold the drained, cooked potatoes into the cheese sauce until they are evenly coated. Pour the potato and sauce mixture into the prepared 9×13-inch baking dish, spreading it into an even layer.
  7. Melt the remaining 1/4 cup of unsalted butter in a small bowl. Add the 1 1/2 cups of crushed cornflakes to the melted butter and stir until the cornflakes are evenly coated. Sprinkle this buttered cornflake mixture evenly over the potato casserole. If desired, sprinkle the reserved 1/2 cup of shredded cheddar cheese over the cornflake topping for extra cheesiness.
  8. Bake for 30 to 35 minutes, or until the casserole is bubbly around the edges and the topping is golden brown and crisp.
  9. Remove the casserole from the oven and let it rest for 5 to 10 minutes before serving. This brief rest allows the sauce to set slightly, making it easier to spoon out neat portions.

Notes

Let the casserole rest for 5-10 minutes after baking for easier serving.

Easy Ways to Customize Your Casserole

  • Extra Cheesy Version: Stir in a cup of creamy Monterey Jack or Gruyère cheese with the cheddar for even more depth.
  • Add Some Protein: Mix in diced ham or cooked, crumbled bacon for a heartier cheesy potato side dish.
  • Herb-Infused Twist: Add a tablespoon of fresh chopped chives or parsley to the cheese sauce for a bright, fresh note.

My Pro Tips for the Best Cheesy Potatoes

  • Potato Perfection: Dice the potatoes uniformly into 1/2-inch cubes to ensure they all cook through at the same time.
  • Sauce Consistency: Whisk the roux constantly for a full minute to cook out the raw flour taste before adding the milk.
  • Cheese Melting: Remove the saucepan from the heat before stirring in the cheese to prevent it from becoming grainy.
  • Resting is Key: Allowing the casserole to rest for 10 minutes after baking helps the sauce set for cleaner serving.

Cozy Serving of Cheesy Potato Casserole

How to Store and Reheat Your Leftovers

  • Store: Cool completely, then transfer to an airtight container. It will keep in the refrigerator for up to 4 days.
  • Freeze: For longer storage, freeze portions in airtight containers for up to 3 months. Thaw in the refrigerator overnight.
  • Reheat: Warm individual portions in the microwave, or reheat the entire casserole, covered with foil, in a 350°F oven for 15-20 minutes until hot.
  • Make-Ahead Tip: You can assemble the casserole a day ahead, cover, and refrigerate. Add the topping just before baking.

Frequently Asked Questions

Can I use frozen hash browns for cheesy potatoes?

Yes, you can substitute frozen shredded hash browns for the diced potatoes. There’s no need to thaw them; just be sure to pat them dry with paper towels to remove excess moisture, which will help prevent a watery cheesy hashbrown casserole. The baking time may need to be extended by 5-10 minutes.

What can I use instead of cornflakes for the topping?

Crushed Ritz crackers, panko breadcrumbs, or even French fried onions make excellent substitutes for the cornflake topping. The goal is to create a crispy, buttery layer that contrasts with the creamy potatoes. For a gluten-free option, try using crushed gluten-free crackers or cereals.

How can I make my cheesy potatoes creamier?

For an even creamier sauce, you can substitute half of the milk with heavy cream. Also, ensure your sour cream is at room temperature before adding it to the warm sauce to help it blend in smoothly without curdling. Letting the casserole rest after baking also allows the sauce to thicken perfectly.

Are cheesy potatoes and funeral potatoes the same thing?

Yes, this dish is very similar to what is often called “funeral potatoes” in the American Midwest. Both are potato casseroles with cheese and a crunchy topping, traditionally made for potlucks and gatherings. The name simply reflects its popularity as a comforting dish to share during times of community.

More Comforting Side Dishes to Try

Make This Simple Cheesy Potatoes Tonight

With its creamy interior, crispy topping, and unmistakably comforting flavor, this cheesy potato side dish is guaranteed to become a regular in your recipe rotation. It’s the perfect combination of simple preparation and spectacular results. I hope this recipe brings as much warmth and joy to your table as it has to mine.

Leave a Comment