What is the difference between scalloped potatoes and cheesy au gratin potatoes?

Scalloped potatoes usually involve thinly sliced potatoes baked in a cream-based sauce without cheese, often made with butter and broth. Cheesy au gratin potatoes, on the other hand, have cheese layered between the potatoes and often a breadcrumb topping. The cheese sauce adds richness and a golden crust when baked. Some recipes may add onions or multiple cheese types for extra flavor. Knowing this difference helps when choosing recipes or explaining the dish.

Can I prepare cheesy au gratin potatoes ahead of time and still get good results?

Yes, you can assemble the potatoes with the cheese sauce up to three days before baking. Cover the dish with foil and keep it refrigerated. When ready to bake, expect to add 15-20 minutes to the original baking time since the dish will start cold. Avoid slicing potatoes too far in advance without storing them in cold water to prevent discoloration.

How should I store leftover au gratin potatoes and reheat them safely?

Store leftovers in airtight containers or cover the baking dish tightly, refrigerating for up to five days. For reheating, microwave individual portions until warm or place the leftovers in an oven-safe dish covered with foil at 350°F until heated through. Using a slow cooker on “warm” can help keep the dish hot for potlucks but may affect the neat layering.

What can I do if my cheese sauce turns out too thick or doesn’t spread evenly between potato layers?

To prevent a thick sauce, avoid cooking it over high heat, which can cause it to thicken too much. Add milk gradually to reach a pourable consistency before pouring over the potatoes. Stir the sauce well and pour it evenly to allow it to seep between slices for proper flavor and moisture distribution.

Are there good substitutions or additions to customize cheesy au gratin potatoes?

Absolutely. You can swap Yukon gold potatoes for sweet potatoes for a different flavor. Use gluten-free flour to make the sauce gluten-free or plant-based butter and cheese for a vegan version. Adding cooked bacon, ham, or different cheeses like smoked gouda adds more depth. For texture, top with breadcrumbs or crushed crackers for crunch. Adjust seasonings like garlic powder, salt, and pepper to your preference.

Cheesy Au Gratin Potatoes Recipe For Delicious Family Meals

Ingredients

Scale

2 ½ pounds Yukon gold potatoes

½ medium yellow onion

3 tablespoons salted butter

¼ cup all-purpose flour

1 ½ cups whole milk or unsweetened almond milk

8 ounces sharp Cheddar cheese

¾ teaspoon kosher salt

½ teaspoon garlic powder

Freshly ground black pepper

2 ounces shredded Gruyere cheese

2 ounces grated Parmesan cheese

Chopped fresh chives or parsley for garnish

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Instructions

1-Getting started with cheesy au gratin potatoes is fun and rewarding. Begin by preheating your oven to 375°F and greasing a 9-inch square baking dish. This ensures everything bakes evenly and comes out just right.

2-Next, arrange the potato slices in three or four slightly slanted rows in the dish, leaving space between slices, and tuck sliced onions between and on top where possible. For the cheese sauce, melt butter in a medium pot over medium heat, then whisk in flour and cook for about 30 seconds to form a paste.

3-Gradually whisk in milk to avoid lumps, increase heat to medium-high, bring to a boil, then reduce to medium-low and simmer for about 5 minutes until it thickens to a creamy gravy consistency. Lower the heat and stir in sharp Cheddar cheese, salt, garlic powder, and pepper, adjusting seasoning as desired.

4-Pour the cheese sauce evenly over the potatoes and onions, then cover the dish with foil and bake for 45 minutes.

5-Remove the foil, sprinkle Gruyere and Parmesan cheese on top, and bake uncovered for another 30 to 45 minutes until the potatoes are tender and the top is golden brown.

6-Optionally broil for 1 2 minutes to crisp the topping, then allow to cool for 10 minutes, garnish with fresh herbs, and serve warm.

Last Step:

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Notes

🥔 Slice potatoes evenly about 1/8 inch thick for uniform cooking – a mandoline slicer works perfectly for consistent thickness
🧀 Use freshly shredded cheese instead of pre-shredded for better melting and a creamier texture in your sauce
⏰ Keep potato slices slightly separated in the dish to allow the cheese sauce to penetrate between layers for even cooking

Author: Brandi Oshea
Prep Time: 30 minutes
Cook Time: 1 hour 15 minutes
Category: Side Dish
Method: Baking
Cuisine: French-American
Diet: Contains dairy, gluten

Nutrition

Serving Size: 1/6 to 1/8 of dish
Calories: 450
Sugar: 8
Sodium: 750
Fat: 28
Saturated Fat: 16
Unsaturated Fat: 10
Trans Fat: 0.5
Carbohydrates: 38
Fiber: 4
Protein: 18
Cholesterol: 85