Ultimate Cast Iron Scalloped Potatoes

Cast Iron Scalloped Potatoes are a show-stopping side dish that perfectly marries rustic cooking with elegant comfort. Imagine pulling a hot, heavy pan from the oven to reveal beautifully overlapping thin potato slices enveloped in a thick, bubbling opaque white cream sauce. The intense heat of the pan ensures that the edges where the potatoes meet the dark cast iron skillet become deeply browned, crispy, and slightly charred.

This recipe transforms humble ingredients into a culinary masterpiece. The center features melted, bubbly golden cheese baked seamlessly into the creamy garlic sauce, nestled between the thin starchy potato layers. Finished with finely chopped fresh green parsley flakes scattered evenly across the golden top crust, this dish is guaranteed to become a family favorite.

Why You’ll Love This Recipe

• Unmatched Texture: The dark cast iron skillet conducts heat perfectly, yielding crispy browned potato edges that contrast beautifully with the tender, creamy center.
• Visual Perfection: The tightly arranged overlapping thin potato slices create an elegant spiral that looks gorgeous served straight from the skillet.
• Decadent Sauce: A thick, bubbling creamy white garlic sauce completely coats every single starchy layer for maximum flavor.
• Golden Cheesy Center: The concentration of melted, bubbly golden cheese in the middle provides that perfect cheese-pull without sacrificing the charred crispy edges of the pan.

Ingredients & Substitutions

Yukon Gold Potatoes: 3 lbs (1.36 kg) of Yukon Gold or Russet potatoes. You must slice them thinly and uniformly to ensure they overlap perfectly and cook evenly.

Heavy Cream: 2 cups (480ml) of heavy cream. This is the foundation of our thick, bubbling opaque white cream sauce.

Chicken Broth: 1 cup (240ml) of chicken or vegetable broth. This thins the heavy cream just enough to cook the starchy potatoes completely without curdling.

Unsalted Butter: 3 tbsp (45g) of unsalted butter. Crucial for building the foundational roux and for heavily greasing the black cast iron skillet.

All-Purpose Flour: 3 tbsp (25g) of flour. Whisked with the butter, this thickens the liquids to create a rich, velvety sauce.

Fresh Garlic: 4 cloves of garlic, finely minced. The aromatic backbone that infuses the creamy white sauce with deep, savory flavor.

Gruyere & Sharp Cheddar Cheese: 1.5 cups (150g) Gruyere and 0.5 cup (50g) sharp cheddar, freshly grated. These melt together to form the bubbly golden cheese center.

Fresh Parsley: 2 tbsp (5g) finely chopped fresh green parsley flakes. This provides a vibrant, fresh visual contrast scattered across the golden top crust.

Kosher Salt & Black Pepper: 1.5 tsp (9g) kosher salt and 0.5 tsp (1g) freshly cracked black pepper. Essential for seasoning the starchy potato layers.

Ground Nutmeg (Optional): 1/4 tsp (0.5g) of ground nutmeg. A classic culinary secret for enhancing savory white cream sauces.

Equipment Needed

• 10-inch or 12-inch round black cast iron skillet
• Mandoline slicer (crucial for consistent 1/8-inch / 3mm slices)
• Medium saucepan for the cream sauce
• Silicone whisk

Step-by-Step Instructions

1. Prep the Skillet and Potatoes

Preheat your oven to 400°F (200°C). Generously grease the interior of your round black cast iron skillet with 1 tablespoon (15g) of softened butter.

Using a mandoline slicer, cut the potatoes into uniform 1/8-inch (3mm) thick slices. Arrange the overlapping thin potato slices in a tight spiral starting from the outside of the skillet and working your way into the center.

2. Build the Garlic Cream Sauce

In a saucepan over medium heat, melt the remaining 2 tablespoons (30g) of butter. Sprinkle in the flour and whisk constantly for 1-2 minutes until it forms a light, bubbling paste.

Add the minced garlic and cook for 30 seconds until highly fragrant. Slowly whisk in the chicken broth, followed by the heavy cream, salt, pepper, and nutmeg.

3. Smother and Bake

Simmer the mixture for 3-5 minutes until you achieve a thick, opaque white cream sauce. Pour this bubbling creamy white garlic sauce evenly over the overlapping potato layers in the skillet.

Cover the skillet tightly with aluminum foil. Bake on the middle rack for 40 minutes, allowing the starchy layers to absorb the liquids and become fork-tender.

4. Melt the Cheese and Crisp the Edges

Remove the foil from the skillet. Sprinkle the grated Gruyere and cheddar cheese primarily over the center of the dish, leaving the outer edges exposed to the pan’s heat.

Return the skillet to the oven, uncovered, for an additional 20 minutes. Watch closely: you want the edges where the potatoes meet the dark cast iron skillet to become deeply browned, crispy, and slightly charred, while the center features melted, bubbly golden cheese.

5. Garnish and Rest

Carefully remove the bubbling skillet from the oven. Let the potatoes rest on a plain neutral countertop for 15 minutes to allow the creamy sauce to set and thicken.

Finish by garnishing with finely chopped fresh green parsley flakes scattered evenly across the golden top crust before serving.

Expert Tips for Success

• Do Not Rinse the Potatoes: After slicing, do not rinse the potatoes in water. You need their natural starches to help thicken the boiling cream sauce inside the skillet.
• Use a Mandoline: For perfectly cooked layers, consistent thickness is non-negotiable. A mandoline ensures every slice is identically thin.
• Pre-Heat the Pan (Optional): For intensely crispy browned potato edges, you can place the buttered cast iron skillet in the oven while it preheats before layering your potatoes.
• Rest Before Serving: Cutting into the skillet immediately will result in a runny sauce. Resting for 15 minutes allows the bubbling opaque white cream sauce to stabilize.

Storage & Reheating

Store any leftover Cast Iron Scalloped Potatoes in an airtight container in the refrigerator for up to 4 days. The flavors actually deepen as the garlic cream sauce continues to meld with the starches.

To reheat, place individual portions in the microwave, or heat the entire skillet in a 350°F (175°C) oven covered with foil until warmed through. Freezing is not recommended, as the heavy cream sauce may separate and the potatoes can become mealy.

What to Serve With This

These rich, creamy cast iron potatoes are the ultimate comfort side dish and pair beautifully with robust, savory mains. Serve them alongside a hearty classic beef stew or a tender, slow-cooked pot roast recipe for a spectacular Sunday dinner.

If you prefer poultry, the crispy charred edges complement the bold flavors of cowboy butter chicken bites or a comforting plate of creamy chicken and asparagus.

For casual entertaining, serve these upscale potatoes next to juicy garlic parmesan cheeseburgers or protein-packed steak and butternut squash bowls.

Frequently Asked Questions

Closing & Subscribe

If you successfully achieve those deeply browned, crispy edges and that bubbling golden cheese center, we want to hear about it! Drop a comment below to share your experience making these Cast Iron Scalloped Potatoes.

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Recipe Schema

Ultimate Cast Iron Scalloped Potatoes

Master the art of Cast Iron Scalloped Potatoes. Featuring thin overlapping layers, a bubbling opaque white garlic cream sauce, deeply browned crispy edges, and a golden bubbly cheese center. The ultimate comfort food side dish.

Print Recipe Pin Recipe

Prep Time 20 minutes mins

Cook Time 1 hour hr

Total Time 1 hour hr 20 minutes mins

Servings: 8 servings

Course: Dinner, Side Dish

Cuisine: American

Calories: 410

Ingredients Equipment Method Notes

Ingredients

  

Recipe Ingredients

• 3 lbs Yukon Gold potatoes Thinly sliced to 1/8-inch
• 2 cups heavy cream For the opaque white sauce
• 1 cup chicken broth Or vegetable broth
• 3 tbsp unsalted butter Divided use
• 3 tbsp all-purpose flour For thickening
• 4 cloves garlic Minced
• 1.5 cups Gruyere cheese Freshly grated
• 0.5 cup sharp cheddar cheese Freshly grated
• 2 tbsp fresh parsley Finely chopped, for garnish
• 1.5 tsp kosher salt
• 0.5 tsp black pepper
• 0.25 tsp ground nutmeg Optional

Equipment

• 1 10-inch or 12-inch Cast Iron Skillet Ensures perfectly crispy, charred edges.
• 1 Mandoline Slicer Crucial for uniform 1/8-inch potato slices.

Method

 

Step-by-Step Cooking Instructions

1. Preheat oven to 400°F (200°C). Generously grease a round black cast iron skillet with 1 tablespoon of butter. Use a mandoline to slice potatoes 1/8-inch thick. Arrange in tight, overlapping circular layers.
2. Melt remaining 2 tablespoons of butter in a saucepan over medium heat. Whisk in flour for 1 minute. Add minced garlic and cook 30 seconds. Slowly whisk in broth, heavy cream, salt, pepper, and nutmeg until it becomes a thick, opaque white cream sauce.
3. Pour the bubbling cream sauce evenly over the potato layers. Cover tightly with foil and bake for 40 minutes.
4. Remove foil. Sprinkle Gruyere and cheddar primarily in the center. Bake uncovered for 20 minutes until the edges meeting the dark cast iron are deeply browned and slightly charred, and the center is melted, bubbly golden cheese.
5. Remove from oven. Scatter finely chopped fresh green parsley evenly across the golden crust. Let rest on a neutral countertop for 15 minutes before serving.

Notes

Tip 1: Do not rinse the sliced potatoes; the natural starch helps thicken the sauce.
Tip 2: Always let the dish rest for 15 minutes before serving so the sauce sets.