Side Dishes
Betty Crocker's potato casserole recipe delivers the ultimate cheesy, comforting side dish that's become a family dinner staple. The secret lies in that crispy cornflake topping that perfectly balances the creamy potato filling underneath.
I've perfected this recipe over years of holiday gatherings, and it never fails to disappear from the table.
This classic dish combines tender potatoes, rich cheese sauce, and a crunchy cornflake crust that creates the perfect textural contrast. The beauty of this recipe is its simplicity - just a few basic ingredients that come together to create restaurant-quality comfort food.
It's the kind of dish that transforms an ordinary meal into something special.
What you'll end up with is a golden, bubbling casserole with a crispy top layer that shatters when you cut into it, revealing creamy, cheesy potato filling underneath. The aroma alone will have everyone gathering around the table, and the first bite will have them asking for seconds.
This is the kind of side dish that pairs perfectly with roasted meats or grilled favorites.
Whether you're serving it at a holiday feast or just looking for a comforting weeknight dinner, this potato casserole delivers satisfaction in every bite. The best part?
It's easy to make ahead and tastes even better the next day. Let's get started on creating this comforting classic that brings warmth to any table.
Ingredients for betty crocker potato casserole
Six ingredients make this cheesy, crispy casserole the ultimate comfort food side.
| Ingredient | Amount | Notes |
|---|---|---|
| Russet Potatoes 🥔 | 3 lb | Cut into 1/2-inch cubes, peeled |
| Cornflakes 🍞 | 1 ½ cups | Crushed into fine crumbs |
| Sharp Cheddar Cheese 🧀 | 2 cups | Shredded, medium sharpness |
| Milk 🥛 | 2 cups | Whole milk preferred |
| Butter 🧈 | ½ cup | Unsalted, melted |
| All-Purpose Flour 🌾 | ¼ cup | For thickening sauce |
| Salt 🧂 | 1 ½ tsp | Kosher salt, adjust to taste |
| Black Pepper 🌶️ | ½ tsp | Freshly ground preferred |
| Garlic Powder 🧄 | 1 tsp | For extra depth |
| Onion Powder 🧅 | 1 tsp | Mild flavor boost |
| Sour Cream 🍦 | ½ cup | Full-fat for creaminess |
| Heavy Cream 🥛 | ¼ cup | Optional for extra richness |
| Green Onions 🧅 | 2 whole | Sliced, for garnish |
The potatoes are the star, so buy the biggest russets you can find—they hold up best to baking. I always grab mine from Costco when they're on sale, but any grocery store carries them. Cut them evenly so they cook at the same rate. For the cornflakes, Kellogg's Original is the classic choice—crush them in a food processor or bag with a rolling pin. The cheese? Sharp cheddar gives the best flavor, but Monterey Jack works too if you prefer a milder taste. Pre-shredded cheese has anti-caking agents, so I always grate my own from a block.
No cornflakes? Crushed Ritz crackers or panko work in a pinch, though the texture won't be exactly the same. Short on cheddar? Colby Jack or pepper jack add different flavors—just adjust the salt. The milk can be any kind, but whole milk gives a creamier sauce. If you're dairy-free, unsweetened almond milk plus extra flour gets you close. For the topping, I like to mix in a little Parmesan if I have it—just 2 tablespoons makes a big difference. The garlic and onion powders are non-negotiable for that classic flavor, so don't skip them!
This casserole tastes even better the next day, so make it ahead if you can. Cover it with foil and refrigerate for up to 2 days, then bake straight from the fridge (add 10-15 minutes). For leftovers, store in an airtight container for 4 days. The topping stays crispy if you reheat it covered with foil, then uncover for the last 2 minutes. I always make a double batch—it disappears faster than you'd think! The green onions are just for garnish, but they add that fresh pop of color that makes it look extra special.
Why You'll Love This Recipe
- One-Pan Magic: I swear by this recipe when I don’t want to dirty more than one dish. Russets get sliced, tossed with butter and milk, then topped with that crispy Cornflake-cheddar blanket—all in one baking dish. The oven does the heavy lifting while I sip coffee and pretend I’m not cooking.
- Cheesy Crunch Perfection: Between us, the sharp cheddar and Cornflake crunch combo is ridiculously good. The cheese melts into gooey pockets, while the Cornflakes stay delightfully crisp on top—like a grown-up grilled cheese, but way more impressive. (Yes, even on a Tuesday night.)
- Leftover Hero: This casserole actually improves the next day. The flavors meld, the Cornflakes soften just enough to be comforting, and it reheats in minutes. I keep a container in the fridge for lazy mornings or post-game snacks—zero guilt, all satisfaction.
- Budget-Friendly Crowdpleaser: Honestly, this recipe costs me about $8 for six servings. Potatoes and cheddar stretch far, and Cornflakes add that fancy crunch without breaking the bank. It’s the kind of dish that makes me look like a hero at potlucks, even though I spent 20 minutes total.
Step-by-step instructions for Betty Crocker potato casserole recipe
This cheesy potato casserole delivers that iconic Betty Crocker magic with a crispy cornflake topping and creamy filling.
👨🍳 Step 1: Prep the Potatoes and Make the Crust
Start by preheating your oven to 375°F. Peel and cut the 3 lb russet potatoes into ½-inch cubes—uniform size ensures even cooking. Boil them in salted water for 8-10 minutes until fork-tender but not falling apart. Drain immediately and return to the pot.
While the potatoes cook, crush the 1.5 cups cornflakes into fine crumbs using a food processor or rolling pin. Mix them in a bowl with 1 cup of the shredded sharp cheddar cheese, 1 tsp garlic powder, 1 tsp onion powder, ½ tsp black pepper, and ½ tsp salt. Spread this mixture evenly over the bottom of a greased 9x13-inch baking dish—this will form the crispy crust.
🍳 Step 2: Build the Creamy Potato Filling
In a large bowl, combine the drained potatoes with the remaining 1 cup sharp cheddar cheese, 2 cups milk, ½ cup melted butter, ½ cup sour cream, and ½ cup heavy cream. Mix gently but thoroughly—just enough to coat the potatoes evenly. Taste and adjust seasoning with more salt or black pepper if needed.
Spread the potato mixture evenly over the cornflake crust in the baking dish. The filling should be level and about ¾-inch thick. Press down gently on the potatoes with a spatula to help them hold their shape during baking.
🔥 Step 3: Create the Topping Layer
In a small bowl, whisk together the ½ cup all-purpose flour and remaining ½ tsp salt. Gradually stir in the remaining 1 cup milk until smooth. Pour this mixture evenly over the potato filling. The liquid should soak into the potatoes, creating a creamy sauce when baked.
Sprinkle the remaining 1 cup sharp cheddar cheese evenly over the top. For extra flavor, slice the 2 whole green onions and scatter them over the cheese. This final layer ensures a golden, bubbly finish.
⏰ Step 4: Bake to Golden Perfection
Bake uncovered at 375°F for 45-50 minutes until the top is golden brown and the edges bubble around the sides. If the crust isn't browning enough, broil for 1-2 minutes at the end—watch closely to avoid burning.
Remove from the oven and let rest for 10 minutes before serving. This resting time allows the filling to set slightly, making it easier to slice. The result? A creamy, cheesy potato casserole with a crispy cornflake crust that's perfect for family dinners.
Pro Tips For Making Betty Crocker Potato Casserole
- PRECOOK POTATOES RIGHT: After boiling Russets for 8 minutes (they’ll finish in the oven), drain and shock them in ice water for 2 minutes—this stops cooking and keeps them from turning gluey. I learned this the hard way when my first batch dissolved into a sad, starchy mess.
- CRUSH CORNFLAKES FINE: Pulse cornflakes in a food processor for 10-15 seconds until they’re a mix of fine crumbs and a few larger pieces—this gives that perfect crispy-cheesy texture without turning the topping into a paste. (Yes, even if you’re impatient like me.)
- SALT THE MILK: Add ½ teaspoon salt to the milk before mixing it with the cheese—it balances the sharp cheddar and makes the whole dish taste richer. I skipped this for years and wondered why my casserole always tasted flat.
- BAKE UNTIL GOLDEN: Cover with foil for the first 30 minutes, then uncover and bake another 10-15 minutes at 375°F until the top is golden and bubbly—this ensures the cornflake crust crisps without burning. (Your future self will thank you.)
Perfect pairings for this betty crocker potato casserole
Classic Side Pairings
This potato casserole pairs beautifully with roasted chicken or herb-roasted turkey—the crispy cornflake topping contrasts perfectly with juicy meats. I always serve it alongside green bean almondine or a simple Caesar salad to balance the richness.
A warm sourdough bread loaf on the side lets guests soak up every last bite of cheesy goodness. 🍗
Protein Pairings
For a heartier meal, pair with slow-cooked pot roast or smoked brisket—the tender, creamy potatoes complement the meaty flavors beautifully. If you're serving grilled steak, add a balsamic reduction to tie everything together.
For lighter options, baked salmon with lemon-dill sauce works wonderfully, keeping the meal balanced and fresh. 🐟
Vegetable Sides
Roasted asparagus with a sprinkle of Parmesan adds a touch of elegance, while steamed broccoli with garlic butter keeps it simple. I love adding corn on the cob for a summery twist—just grill it alongside the casserole.
For a pop of color, roasted carrots with thyme and honey add natural sweetness that pairs surprisingly well. 🥕
Beverage Pairings
A cold glass of milk is the classic choice, but I often reach for iced tea with lemon to cut through the richness. For wine lovers, a crisp Chardonnay or light Pinot Grigio complements the creamy, cheesy flavors beautifully.
If you prefer beer, a pale ale or wheat beer adds a refreshing contrast. 🍷
Holiday Adaptations
For Thanksgiving, I add sausage crumbles to the potato filling for extra heartiness. During Christmas, a sprinkle of smoked paprika on the cornflake crust gives it a festive touch.
For Easter, swap the green onions for chives and add a pinch of nutmeg to the cheese sauce for a springtime twist. 🎄
Make-Ahead Serving
This casserole reheats beautifully, making it perfect for buffet-style gatherings. Serve it with warm dinner rolls and pickled vegetables for a complete spread. For potlucks, bring the casserole in a disposable foil pan—it stays warm and looks inviting.
The leftovers? Even better the next day, so always make extra! 🍽️
Nutrition facts
Frequently asked questions
Can I make this potato casserole without cornflakes?
If you don't have cornflakes, crushed Ritz crackers or panko breadcrumbs work beautifully as substitutes. For extra crunch, mix in 1 tablespoon melted butter with your alternative topping. The texture will differ slightly, but it'll still deliver that satisfying crispy finish.
How do I prevent the casserole from getting soggy?
Prevent sogginess by ensuring your cornflake crust is fully dry before adding the potato filling. Bake the crust alone for 5 minutes at 375°F before adding the potatoes. Also, avoid overmixing the potato filling—just coat the cubes lightly. For extra insurance, sprinkle 1/4 cup crushed cornflakes on top before the final cheese layer.
Can I use sweet potatoes instead of russets?
While you can substitute sweet potatoes, the texture and flavor will change significantly. Sweet potatoes have a naturally sweeter taste and softer texture when cooked. If you try it, reduce the baking time by 10-15 minutes and add 1/2 teaspoon cinnamon to the cheese sauce for balance. The cornflake crust will still work, but expect a different eating experience.
What's the best way to reheat leftovers?
Reheat leftovers covered with foil at 350°F for 20-25 minutes until warmed through. For extra crispiness, uncover the last 2 minutes of reheating. You can also refresh the crust by sprinkling 1 tablespoon crushed cornflakes and a pinch of cheese on top before reheating. Leftovers taste even better the next day!
Can I make this casserole in a different size dish?
Yes! For a 9x13-inch dish, use the full recipe. For an 8x8-inch dish, reduce all ingredients by about 25%. For a 11x15-inch dish, increase by 50%. Always adjust baking time—smaller dishes may need 5-10 extra minutes, while larger dishes might need 10-15 extra minutes. Use a meat thermometer to check when the center reaches 165°F.