Cheesy Garlic Scalloped Potatoes

Few side dishes capture the heart of comfort food lovers quite like cheesy garlic scalloped potatoes. With tender Yukon gold potatoes smothered in a velvety garlic-infused cheese sauce and baked until golden and bubbly, this dish is a showstopper for both weeknight dinners and festive holiday spreads.

Whether you’re serving it alongside roasted meats or enjoying it as a hearty vegetarian main, the rich texture and bold flavors of this dish make it a favorite across the board.

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Why You’ll Love This Recipe

• Ultra-creamy texture from a three-cheese blend
• Layers of flavor from caramelized onion, garlic, and thyme
• Perfect for make-ahead meals or large family gatherings
• A crowd-pleaser for holidays like Thanksgiving, Christmas, and Easter
• Easy to customize with add-ins like bacon or herbs

This cheesy garlic scalloped potatoes recipe combines simple ingredients into a luxurious casserole that delivers on both flavor and comfort.

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Preparation Phase and Tools to Use

Creating the perfect scalloped potatoes starts with prep. Ensuring evenly sliced potatoes and a well-emulsified cheese sauce are key to a successful result.

Prepping the Ingredients

• Potatoes: Yukon golds are ideal for their creamy texture and buttery flavor. Slice them thinly (about 1/8 inch) using a mandoline slicer or a sharp knife.
• Onions & Garlic: Finely dice the onion and mince the garlic for even sautéing.
• Cheese: Use freshly shredded cheddar, mozzarella, and Parmesan for best melting results.

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Essential Tools and Equipment

To achieve the right texture and consistency, a few kitchen tools are essential.

• Mandoline slicer: Ensures thin, even potato slices for uniform cooking.
• Saucepan: Medium-sized, for preparing the cheese sauce.
• Whisk: Crucial for making a smooth roux and preventing lumps.
• 9″ x 13″ casserole dish: Provides the ideal depth for layering potatoes and sauce.
• Aluminum foil: Used to cover the dish during the first stage of baking.

Importance of Each Tool

• A mandoline guarantees consistent potato slices, helping them cook evenly.
• A heavy-bottomed saucepan distributes heat evenly for a smooth cheese sauce.
• A whisk prevents clumps when combining flour, milk, and broth into a roux.
• A casserole dish promotes even baking and browning on top.

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Preparation Tips

• Do not peel Yukon gold potatoes unless desired—the skins add nutrients and rustic texture.
• Soak sliced potatoes in cold water if prepping early to prevent oxidation.
• Shred cheese fresh from the block to avoid anti-caking agents that prevent melting.
• Let the sauce thicken slightly before removing from heat—this prevents the final dish from becoming watery.

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Ingredients

Organized for easy gathering and efficient prep:

• 2.5–3 lbs Yukon gold potatoes, thinly sliced (1/8 inch)
• 1/4 cup butter
• 1 medium onion, diced
• 8–10 cloves garlic, minced
• 1/4 cup all-purpose flour
• 2 cups milk
• 1 cup chicken broth
• 1/2 teaspoon dried thyme
• 1 teaspoon salt
• 1 cup cheddar cheese, shredded
• 1 cup mozzarella cheese, shredded
• 3/4 cup Parmesan cheese, grated

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Step-by-Step Directions

1. Preheat your oven to 350°F.
2. Prepare the potatoes: Wash, scrub, and slice into 1/8-inch rounds. Set aside.
3. In a saucepan, melt butter over medium heat. Add diced onion and garlic. Sauté for 1–2 minutes until softened.
4. Stir in flour to form a roux. Cook for 1 minute to remove raw taste.
5. Slowly pour in milk and chicken broth, whisking constantly.
6. Add thyme and salt. Bring to a gentle boil and cook until slightly thickened.
7. Remove from heat. Stir in cheddar, mozzarella, and Parmesan cheeses.
8. Grease a 9×13 casserole dish. Layer one-third of the potatoes on the bottom.
9. Spoon one-third of the cheese sauce over the potatoes. Repeat layering twice more.
10. Cover with foil. Bake for 30 minutes.
11. Uncover and bake an additional 35–45 minutes until top is golden and potatoes are fork-tender.
12. Let cool for 10 minutes before serving.

Serving Suggestions

These creamy scalloped potatoes are incredibly versatile. Rich and savory, they pair well with proteins and lighter vegetable sides to balance their hearty texture.

Here are some serving ideas:

• With Roasted Meats: Pair with roast chicken, turkey, or glazed ham. The creamy potatoes complement roasted flavors perfectly.
• Next to Grilled Entrées: Serve alongside grilled steak, pork chops, or salmon for a summer-friendly twist.
• As a Vegetarian Main: Serve generous portions with a green salad and crusty bread for a filling meatless meal.
• In Individual Servings: Use ramekins for elegant individual portions for dinner parties or potlucks.
• Holiday Highlight: A must-have at Thanksgiving, Christmas, or Easter. It balances rich mains and adds comforting warmth to the table.

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Common Mistakes to Avoid

Even with simple ingredients, there are a few common mistakes that can affect the final result of your cheesy garlic scalloped potatoes. Avoid these to ensure a creamy, evenly cooked, and flavorful dish.

1. Slicing Potatoes Too Thick

If slices are too thick, they may not cook through by the time the top is golden. Stick to 1/8-inch slices for the best texture.

2. Using Pre-Shredded Cheese

Pre-shredded cheese often contains anti-caking agents that prevent smooth melting. Always grate cheese fresh for a creamy sauce.

3. Skipping the Roux

The roux ensures the sauce thickens properly and prevents separation. Don’t skip this step, and cook it until golden for a deeper flavor.

4. Underseasoning

Potatoes absorb seasoning, so it’s crucial to flavor the sauce well. Don’t be afraid to add salt or a touch more garlic to intensify the taste.

5. Overlapping Potatoes Too Tightly

When layering, avoid tightly packing the slices. Leave a slight gap between them so the sauce can coat each slice evenly, leading to better cooking and flavor distribution.

6. Not Letting the Dish Rest

Let the dish sit for 10–15 minutes after baking. This allows the sauce to set and results in cleaner, more cohesive servings.

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How to Perfect the Recipe

Beyond avoiding common errors, there are a few pro-level tips to elevate your cheesy garlic scalloped potatoes from good to great.

• Use Room Temperature Dairy: Cold milk can cause the roux to seize. Let milk and broth sit at room temperature before use for a smoother sauce.
• Stir Continuously When Making the Sauce: To avoid lumps or uneven thickening, whisk constantly over medium heat until the sauce is just thick enough to coat the back of a spoon.
• Layer Sauce Evenly: Pour the sauce over each layer of potatoes evenly to ensure every bite is rich and flavorful.
• Don’t Rush the Bake Time: The dish needs enough time to soften the potatoes completely and develop that golden, bubbly top layer.
• Broil for Extra Crisp: For a crispy top layer, place the dish under the broiler for 2–3 minutes at the end of baking. Watch carefully to avoid burning.

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8 Side Dishes That Pair Perfectly

To round out your meal, here are eight complementary sides that go beautifully with cheesy scalloped potatoes:

1. Green Beans Almondine – A light and crisp vegetable side that adds freshness.
2. Balsamic Roasted Brussels Sprouts – Balances richness with tangy caramelization.
3. Honey Glazed Carrots – Adds sweetness and color contrast to your plate.
4. Garlic Butter Asparagus – Earthy and aromatic, great with the creamy texture of the potatoes.
5. Mixed Green Salad with Lemon Vinaigrette – Cuts through the richness with acidity and crunch.
6. Cranberry Sauce – Especially for holiday pairings, the tartness is a perfect contrast.
7. Sauteed Mushrooms with Herbs – Deep umami flavor that complements cheese.
8. Buttery Dinner Rolls or Sourdough Bread – Ideal for soaking up the cheesy sauce.

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Whether you serve these potatoes as a side or the centerpiece, pairing them thoughtfully and avoiding key missteps will ensure they come out perfect every time. Their savory, garlicky richness and golden top make them a dish that earns repeat requests from family and guests alike.

Expert Recipe Tips

Even if you’ve made scalloped potatoes before, a few strategic techniques can help you achieve better flavor, texture, and presentation.

Choose the Right Potatoes

Yukon gold potatoes are the best choice. Their waxy texture holds up well to baking while delivering a buttery richness. Avoid russet potatoes, which can become too soft and starchy after baking.

Use High-Quality Cheese

Stick with blocks of cheese and shred them yourself. Pre-shredded cheese contains anti-caking agents that inhibit melting and result in a grainy sauce. Use full-fat varieties for the best taste and texture.

Don’t Overcrowd the Layers

When layering the potatoes and sauce, make sure the slices are evenly spread out. If they’re packed too tightly, the sauce won’t circulate, and the center may remain undercooked.

Let It Rest Before Serving

After removing the dish from the oven, allow it to cool for 10–15 minutes. This helps the sauce set and prevents it from running when sliced.

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Storage Instructions

Cheesy garlic scalloped potatoes can be stored for future meals, making them a convenient make-ahead option.

Refrigeration

• Allow the dish to cool completely at room temperature.
• Transfer leftovers to an airtight container or cover the baking dish tightly with foil or plastic wrap.
• Store in the refrigerator for up to 4 days.

Freezing

While scalloped potatoes can be frozen, the texture of the cream sauce may change slightly.

• Freeze in individual portions for easier reheating.
• Wrap tightly in freezer-safe containers or double-wrap with foil and plastic wrap.
• Label and freeze for up to 2 months.

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Reheating Instructions

Reheating this dish correctly keeps it creamy and delicious. Avoid drying it out or overcooking during the reheating process.

In the Oven

• Preheat oven to 325°F.
• Place potatoes in an oven-safe dish and cover with foil to retain moisture.
• Bake for 20–25 minutes, or until heated through.
• Remove the foil during the last few minutes if you want to crisp up the top layer.

In the Microwave

• For smaller portions, microwave on medium power.
• Cover loosely with a microwave-safe lid or paper towel.
• Heat in 1-minute intervals, stirring or checking frequently.
• Add a splash of milk or broth if the sauce thickens too much.

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Frequently Asked Questions (FAQs)

Can I Make Cheesy Scalloped Potatoes Ahead of Time?

Yes. Assemble the dish up to a day in advance and refrigerate it unbaked. Let it sit at room temperature for 30 minutes before baking. Alternatively, bake it fully and reheat before serving.

Can I Freeze Cheesy Scalloped Potatoes?

You can freeze them, though the texture of the sauce may become slightly grainy after thawing. Reheat gently and consider adding a bit of fresh cheese to revive creaminess.

What’s the Difference Between Scalloped Potatoes and Au Gratin?

Scalloped potatoes typically feature a creamy sauce, while au gratin potatoes include breadcrumbs and a stronger emphasis on cheese. This recipe blends elements of both for a richer experience.

Why Are My Potatoes Still Hard?

The most common reason is slicing potatoes too thick or not baking them long enough. Stick to 1/8-inch slices and ensure you bake uncovered long enough for them to become fork-tender.

Can I Make This Dish Gluten-Free?

Yes. Substitute the all-purpose flour with a gluten-free flour blend. Make sure the broth and cheese you use are certified gluten-free as well.

Can I Use Red Potatoes Instead?

Red potatoes have a waxier texture and can work in this recipe, though they may not deliver the same creamy consistency as Yukon gold.

How Long Do Leftovers Last in the Fridge?

Properly stored, they can last up to 4 days. Make sure the dish is fully cooled before sealing to avoid condensation and sogginess.

Can I Use Plant-Based Milk or Cheese?

Yes, for a dairy-free or vegan version, use unsweetened almond or oat milk and dairy-free cheese alternatives. Replace the butter with plant-based margarine and use vegetable broth instead of chicken broth.

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Conclusion

Cheesy garlic scalloped potatoes are more than just a side dish—they’re a comforting, creamy, and flavorful staple for every occasion. By following the preparation tips, avoiding common pitfalls, and knowing how to store and reheat leftovers, you ensure that this dish maintains its rich appeal every time it’s served. Whether it’s a holiday feast or a weeknight dinner, this recipe offers timeless flavor with minimal effort.