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Hasselback Potatoes

This Hasselback Potatoes recipe is made easy in casserole form – meant to be shared with your favorite people. The potatoes bake into beautiful layers with caramelized edges and a cheesy, crispy finish.

Overhead shot of hasselback potatoes in a casserole dish.
I make these Hasselback Potatoes when I want a side that looks impressive but takes hardly any effort.

Amy’s Notes

Amy Dong

These Hasselback Potatoes are one of my favorite potato side dishes for a side dish has wow factor, but is surprisingly easy to make. Guests devour this when I serve it on holidays, from Thanksgiving to Easter. It’s also a great side dish for entertaining any time of year. What people love about these potatoes:

  • Crispy Meets Creamy: The edges bake up golden and crisp while the centers stay soft and buttery, similar to these Parmesan Roasted Potatoes.
  • Simple Ingredients, Big Flavor: Butter, olive oil, garlic, and onion create a rich, savory flavor using simple pantry staples.
  • Easy to Slice and Bake: A mandolin makes slicing quick and even, but a sharp knife works just as well and the oven handles the rest.
  • Crowd Favorite: They always get attention at the table and disappear fast, just like these Garlic Butter Herb Red Potatoes. I hope you love this!

Amy

Key Recipe Ingredients

  • Salted Butter – Melted butter gives the potatoes rich flavor and helps them crisp up beautifully while baking. You can use unsalted butter and add a bit more salt if you prefer.
  • Russet Potatoes – Their starchy texture makes them ideal for crisp edges and tender centers. Yukon Golds can be used for a creamier texture.
  • Onion – Chopped onion bakes between the potato slices, adding sweetness and depth to every bite.
  • Garlic – Freshly chopped garlic infuses the dish with bold, savory flavor that complements the buttery potatoes.
  • Parmesan Cheese – Freshly shredded parmesan melts into a golden, salty crust on top. Pecorino Romano or Asiago are good substitutes.
  • Green Onions – Thinly sliced green onions add a fresh, mild bite and a pop of color to the finished dish.

Substitutions And Variations

Here are some of our favorite substitutions and variations:

  • Cheese Options: I like using parmesan for its salty crunch, but cheddar, gruyere, or mozzarella melt beautifully too. You can even mix a few for extra richness.
  • Herb Add-Ins: Try sprinkling fresh thyme, rosemary, or parsley before baking. Dried Italian seasoning works great if that’s what you have on hand.
  • Extra Flavor: I sometimes tuck in bits of bacon or pancetta between the slices for a smoky touch. You can also drizzle a little sour cream or ranch on top before serving.

Step-By-Step Recipe Instructions

  1. Slice the peeled potatoes thinly and evenly using a mandolin or sharp knife. Thin slices help the potatoes cook evenly and create the classic layered texture.
  2. Whisk melted butter, olive oil, salt, and pepper together until combined. This mixture coats the potatoes and adds rich flavor as they roast.
  3. Arrange the potato slices upright in a baking dish and tuck chopped onion and garlic between them. This allows the aromatics to infuse the potatoes as they bake.
  4. Brush the potatoes with most of the butter mixture and bake at 375°F for 1 hour uncovered. This first bake softens the potatoes and begins browning the edges.
  5. Brush the remaining butter mixture over the potatoes and continue baking about 30 minutes. This deepens the flavor and crisps the tops.
  6. Sprinkle Parmesan and green onions over the potatoes and bake 5–10 minutes more. The cheese melts and lightly browns for a savory finish.

For full list of ingredients and instructions, see recipe card below.

How To Prep Ahead

Take a look at our best prep-ahead strategies for this recipe:

  • Prep the Potatoes Early: Slice and arrange the potatoes in the baking dish a few hours before baking. Cover tightly with plastic wrap and refrigerate. When ready to bake, brush with the butter mixture and place straight in the oven.
  • Make the Butter Mixture Ahead: Whisk together the melted butter, olive oil, salt, and pepper up to two days in advance. Store in an airtight container in the fridge, then warm slightly before brushing over the potatoes.
  • Make Entirely Ahead: You can bake the dish completely, let it cool, and refrigerate it overnight. Reheat covered at 350°F for about 20 minutes, then uncover and bake a few more minutes to bring back the crisp top.
Overhead shot of hasselback potatoes in a casserole dish.
These Hasselback Potatoes are easy enough for a weeknight but fancy enough for company too.
Overhead shot of hasselback potatoes in a casserole dish.

Hasselback Potatoes

5 from 4 ratings
Hasselback Roast Potato Casserole is crispy on the edges and tender throughout the center. Wow your guests with this delicious recipe.
Prep Time: 30 minutes
Cook Time: 1 hour 40 minutes
Total Time: 2 hours 10 minutes
Servings: 8 -10
Author: Amy Dong

Ingredients  

  • 3 tablespoons salted butter, melted
  • 3 tablespoons extra virgin olive oil
  • 4 pounds russet potatoes, washed and peeled
  • 1 medium onion, chopped
  • 5 cloves garlic, chopped
  • 1 ¼ teaspoons kosher salt, plus more for sprinkling on top
  • ½ teaspoon freshly ground black pepper, plus more for sprinkling on top
  • ½ cup parmesan cheese, freshly shredded
  • 3 tablespoons green onions, thinly sliced

Instructions

  • Preheat oven to 375F with rack on middle position.
  • In a bowl, whisk together the melted butter, olive oil, salt, and black pepper. Brush bottom of a 9-inch baking square or oval dish with a bit of butter mixture; set the remaining mixture aside.
  • Slice potatoes thinly and evenly cross-wise. For fastest and most even results, use a mandolin to slice potatoes. A sharp knife will work, too.
  • Arrange potato slices upright in prepared dish. Wedge chopped onions and garlic throughout potatoes. Brush with butter mixture, reserving 1/4 cup for later.
  • Bake 1 hour uncovered. Brush on the reserved 1/4 cup butter mixture and continue baking another 30 minutes until top is lightly browned. If it starts browning too quickly, cover loosely with foil.
  • Sprinkle top with shredded parmesan cheese and green onions. Bake 5-10 minutes until cheese is golden and melted. Sprinkle top with a light dusting of kosher salt and black pepper. Serve immediately.

Notes

  • Keep slices upright. Pack the potato slices snugly in the dish to help them hold their shape and bake evenly.
  • Brush generously. Coat the potatoes well with the butter and oil mixture for the best flavor and golden edges.
  • Use freshly shredded cheese. It melts more smoothly and gives a better crust than pre-shredded packaged cheese.
  • Serve right away. These potatoes taste best fresh from the oven when the edges are crisp and the centers are tender.
  • Variations: Try adding bacon bits, different cheeses, or fresh herbs like thyme or rosemary for extra flavor.
  • Storage and Reheating: Store leftovers airtight in fridge for up to 2 days. Warm leftovers uncovered at 350F in the oven just long enough to bring back the crisp texture. 
  • This recipe is part of our Thanksgiving Side Dishes Recipes Collection.
  • We love serving these hasselback potatoes during the holidays alongside other favorites such as our Garlic Butter Mushrooms or Brown Sugar Baked Beans with Bacon.
 
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Nutrition (per serving)

Calories: 156kcal | Carbohydrates: 22.1g | Protein: 3.5g | Fat: 6.4g | Saturated Fat: 2.5g | Trans Fat: 0.1g | Cholesterol: 8.6mg | Sodium: 89.6mg | Fiber: 3.4g | Sugar: 2.1g
Course: Side Dish
Cuisine: American
Diet: Gluten Free, Vegetarian
Method: Bake

What To Serve with Hasselback Potatoes

Main Dishes

Side Dishes

Frequently Asked Questions

Do I need to peel the potatoes?

Peeling is optional. If you prefer a rustic look and extra texture, you can leave the skins on. Just be sure to scrub them well before slicing.

What if I don’t have a mandolin?

A sharp knife works perfectly fine. Take your time to slice the potatoes evenly so they cook uniformly. You can also place chopsticks or wooden spoons along the sides of the potato to prevent cutting all the way through.

Can I add other toppings or flavors?

Definitely. Try adding crumbled bacon, shredded cheddar, or fresh herbs like rosemary or thyme. You can also drizzle a bit of sour cream or ranch on top before serving for extra flavor.

How long does it keep?

Store leftovers in an airtight container in the fridge for up to 3 days. Reheat in the oven at 350°F until warmed through and crisp again, or use the microwave for a quicker option. These potatoes don’t freeze well, as the texture can become soft once thawed.

More to Cook and Eat

  • Sweet Potato Cornbread – This sweet potato cornbread is made with roasted whole sweet potatoes, which provide exceptional flavor and tenderness.
  • Sweet Potato Fries (Crispy Baked) – Learn how to make CRISPY sweet potato fries in the oven! Perfect for every occasion, they’re big on flavor, ultra crispy, and healthy.
  • Chicken Stew with Sweet Potatoes – This supremely satisfying Chicken, Sweet Potato, and Coconut Stew is a style of chicken curry stew that’s healthy AND delicious. Whole30, Paleo, Clean.
  • Sweet Potato Hummus – This Sweet Potato Hummus is super easy and healthy! It’s perfect for parties during the holiday season or delicious guilt-free snacking all year round.

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