There's something magical about a bubbling dish of scalloped potatoes pulled from the oven, especially when it's turned into a hearty pie. This Scalloped Irish Potato Pie is my family's favorite way to celebrate St. Patrick's Day, but honestly, we make it all year round.
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Layers of thinly sliced potatoes, caramelized onions, and sharp cheddar are baked in a rich, creamy sauce until the top is golden and the edges are crisp. It's comfort food at its finest, and it's easier than you think.
I love that this dish can be made ahead and baked when you're ready. It's perfect for busy weeknights or holiday gatherings.
Why You'll Love This Recipe
About the Ingredients
2 lbs (900g) Yukon Gold potatoes, thinly sliced (about 1/8-inch thick)
Yukon Golds hold their shape and have a buttery flavor. Substitute with Russets for a fluffier texture.
2 tablespoons (30g) unsalted butter, divided
Used for greasing the dish and sautéing onions. Substitute with olive oil for a dairy-free option.
1 large onion, thinly sliced
Adds sweetness and depth. Use a sweet onion like Vidalia for a milder flavor.
3 cloves garlic, minced
Fresh garlic is best; use 1/2 teaspoon garlic powder if that's what you have.
2 cups (480ml) heavy cream
For the richest sauce. Substitute with half-and-half for a lighter version, or use full-fat coconut milk for dairy-free.
1 cup (120g) shredded sharp cheddar cheese
Sharp cheddar adds a bold flavor. Try Gruyère or Irish Dubliner for a more authentic taste.
1/2 cup (50g) grated Parmesan cheese
Adds a nutty, salty note. Pecorino Romano works too.
1 teaspoon salt
Adjust to taste. Use fine sea salt for even distribution.
1/2 teaspoon black pepper
Freshly ground is best.
1/4 teaspoon ground nutmeg
A pinch of nutmeg enhances the creamy sauce. Optional but recommended.
Tips & Tricks
- Use a mandoline slicer for perfectly even potato slices – this ensures even cooking.
- Soak sliced potatoes in cold water for 30 minutes, then pat dry to remove excess starch and prevent browning.
- Let the pie rest for 10-15 minutes after baking before slicing – this allows the sauce to set and makes clean slices.
Pro Tips
Step-by-Step Instructions
1. Preheat and Prepare
Preheat oven to 375°F (190°C). Grease a 9-inch pie dish with 1 tablespoon of butter.
2. Sauté Onions and Garlic
In a skillet, melt remaining 1 tablespoon butter over medium heat. Add onion and cook until soft and golden, about 8 minutes. Add garlic and cook for 1 minute until fragrant.
3. Layer Potatoes and Onion
Place a layer of potato slices in the bottom of the pie dish, slightly overlapping. Top with a spoonful of the onion mixture. Repeat layers, seasoning with salt, pepper, and a pinch of nutmeg between layers.
4. Pour Cream Mixture
In a small bowl, mix the heavy cream with remaining salt and pepper. Pour the cream over the layered potatoes, ensuring it seeps down between the layers.
5. Add Cheeses
Sprinkle the cheddar and Parmesan cheeses evenly over the top.
6. Bake Covered
Cover the dish with foil and bake at 375°F (190°C) for 30 minutes. The potatoes should be partially tender.
7. Bake Uncovered
Remove the foil and continue baking for 25-30 minutes, until the top is golden brown and the edges are bubbly. A knife should insert easily into the center.
8. Rest and Serve
Let the pie rest for 10 minutes before slicing. This helps the layers set. Serve warm.
Delicious Variations
- Add cooked, crumbled bacon or ham between the layers for a smoky, hearty twist.
- Swap the cheddar for Irish Dubliner cheese and add a layer of sautéed leeks for extra Irish flavor.
- For a vegetarian main, add a layer of sautéed mushrooms and spinach.
How to Store Scalloped Irish Potato Pie
Refrigerator
Store leftovers in an airtight container in the fridge for up to 4 days.
Freezer
Freeze the baked pie (cooled completely) wrapped in foil and plastic wrap for up to 2 months. Thaw overnight in the fridge before reheating.
Reheating
Reheat individual portions in the microwave for 1-2 minutes, or in a 350°F (175°C) oven for 10-15 minutes until heated through.
Frequently Asked Questions
Q: Can I use a different type of potato?
Yes, Russets work well and give a fluffier texture, but they may absorb more liquid. Yukon Golds are my top choice for their buttery flavor and ability to hold shape.
Q: How do I prevent the potatoes from turning brown?
Soak the sliced potatoes in cold water for 30 minutes, then pat them dry before layering. This removes excess starch and prevents discoloration.
Q: Can I make this ahead of time?
Absolutely! Assemble the pie completely (without baking), cover, and refrigerate for up to 24 hours. When ready to bake, add about 10 minutes to the covered baking time.
Q: What can I use instead of heavy cream?
You can use half-and-half or whole milk for a lighter sauce, but the texture will be less rich. For a dairy-free version, use full-fat coconut milk.
Q: Why did my pie turn out watery?
Watery pie often happens if the potatoes release too much moisture. Soaking and drying the potatoes, and making sure the sauce is thick enough, helps. Also, don't over-layer with too many potatoes.
Try this Scalloped Irish Potato Pie tonight – it's the perfect way to bring a little Irish comfort to your table. Slice, serve, and watch it disappear!
Scalloped Irish Potato Pie
A creamy, cheesy potato pie with a golden crust. Perfect St. Patrick's Day side or cozy weeknight dinner.
🧂 Ingredients
- 2 lbs (900g) Yukon Gold potatoes, thinly sliced (about 1/8-inch thick)
- 2 tablespoons (30g) unsalted butter, divided
- 1 large onion, thinly sliced
- 3 cloves garlic, minced
- 2 cups (480ml) heavy cream
- 1 cup (120g) shredded sharp cheddar cheese
- 1/2 cup (50g) grated Parmesan cheese
- 1 teaspoon salt
- 1/2 teaspoon black pepper
- 1/4 teaspoon ground nutmeg
📋 Instructions
- 1Preheat and Prepare — Preheat oven to 375°F (190°C). Grease a 9-inch pie dish with 1 tablespoon of butter.
- 2Sauté Onions and Garlic — In a skillet, melt remaining 1 tablespoon butter over medium heat. Add onion and cook until soft and golden, about 8 minutes. Add garlic and cook for 1 minute until fragrant.
- 3Layer Potatoes and Onion — Place a layer of potato slices in the bottom of the pie dish, slightly overlapping. Top with a spoonful of the onion mixture. Repeat layers, seasoning with salt, pepper, and a pinch of nutmeg between layers.
- 4Pour Cream Mixture — In a small bowl, mix the heavy cream with remaining salt and pepper. Pour the cream over the layered potatoes, ensuring it seeps down between the layers.
- 5Add Cheeses — Sprinkle the cheddar and Parmesan cheeses evenly over the top.
- 6Bake Covered — Cover the dish with foil and bake at 375°F (190°C) for 30 minutes. The potatoes should be partially tender.
- 7Bake Uncovered — Remove the foil and continue baking for 25-30 minutes, until the top is golden brown and the edges are bubbly. A knife should insert easily into the center.
- 8Rest and Serve — Let the pie rest for 10 minutes before slicing. This helps the layers set. Serve warm.
Elena writes about home organization and decluttering from a busy parent's perspective. She focuses on simple, low-cost systems that actually work in real life. Her articles emphasize small daily habits over perfect aesthetics.
