Slow Cooker Cheesy Garlic Hasselback Potatoes – Buttery, Tender & Extra Cheesy

These Slow Cooker Cheesy Garlic Hasselback Potatoes take everything good about a loaded baked potato and make it even more irresistible. Whole potatoes are thinly sliced accordion-style, coated with garlic herb butter, then slowly cooked until tender before plenty of cheese is tucked between the slices and melted over the top.

The slow cooker does most of the work, making these especially convenient when your oven is busy with the rest of dinner. The potatoes become soft and buttery inside while all those little Hasselback cuts capture melted garlic butter, Parmesan, and gooey cheddar.

Serve them alongside steak, chicken, pork, or barbecue—or pile on the toppings and turn them into the main event.

Ingredients

For the Hasselback Potatoes

• 6 medium Yukon Gold or russet potatoes, about 8–10 ounces each
• 4 tablespoons (57g) unsalted butter, melted
• 2 tablespoons olive oil
• 4 cloves garlic, finely minced
• 1 teaspoon garlic powder
• 1 teaspoon dried parsley
• ½ teaspoon dried thyme
• 1 teaspoon kosher salt
• ½ teaspoon freshly ground black pepper
• ½ teaspoon smoked paprika

For the Cheese

• 1½ cups (170g) freshly shredded sharp cheddar cheese
• ½ cup (55g) freshly shredded Monterey Jack
• ⅓ cup (30g) freshly grated Parmesan

Optional Toppings

• Chopped fresh chives
• Fresh parsley
• Sour cream
• Crispy cooked bacon
• Extra melted butter
• Freshly ground black pepper
• Crushed red pepper flakes

How to Make Slow Cooker Cheesy Garlic Hasselback Potatoes

Step 1 – Prepare the Potatoes

Scrub the potatoes thoroughly and pat them completely dry.

There's no need to peel them. The skins help the potatoes maintain their shape during the long cooking time.

Place one potato between two wooden spoon handles or chopsticks.

Using a sharp knife, make thin slices approximately ⅛–¼ inch apart, cutting almost—but not completely—through the potato.

The wooden handles prevent your knife from accidentally slicing all the way through.

Repeat with all the potatoes.

Make the Garlic Herb Butter

Combine:

• Melted butter
• Olive oil
• Minced garlic
• Garlic powder
• Parsley
• Thyme
• Salt
• Black pepper
• Smoked paprika

Stir thoroughly.

The combination of butter and olive oil gives the potatoes rich flavor while helping the seasoning spread more easily between all those thin slices.

Season the Potatoes

Place the potatoes in the slow cooker with the sliced sides facing upward.

Brush approximately half of the garlic butter generously over them.

Gently separate the slices with your fingers and allow some of the butter mixture to run down between them.

Don't force the slices apart or they can break away from the base.

Reserve the remaining garlic butter.

Slow Cook

Cover and cook until the potatoes are tender:

• HIGH: approximately 3–4 hours
• LOW: approximately 5–6 hours

Exact cooking time depends on potato size and your slow cooker.

The potatoes are ready for cheese when a thin knife slides easily into the center and the Hasselback slices have begun separating naturally.

Add More Garlic Butter

About 30 minutes before serving, carefully brush the potatoes with the remaining garlic herb butter.

At this stage, the slices should have opened considerably, making it easier for that buttery garlic mixture to reach deeper into each potato.

Add the Cheese

Combine the cheddar and Monterey Jack.

Carefully tuck small pinches of cheese between several of the potato slices.

Don't worry about filling every individual cut.

Sprinkle the remaining cheese generously over the tops.

Finish with Parmesan.

Cover and cook on HIGH for another 15–25 minutes, or until the cheese is completely melted.

Finish & Serve

Carefully lift the potatoes from the slow cooker with a wide spatula or tongs.

Finish with chopped chives or parsley.

For loaded Hasselback potatoes, add:

• Sour cream
• Crispy bacon
• Extra cheddar
• Green onions

Serve immediately while the cheese is hot and stretchy.

Chef's Tips for the Best Hasselback Potatoes

• Choose potatoes of similar size so they finish cooking together.
• Yukon Golds give you creamy centers; russets produce a fluffier interior.
• Don't slice completely through the potatoes.
• Chopsticks or wooden spoons make excellent cutting guides.
• Keep the cuts relatively close together for the classic accordion effect.
• Don't aggressively separate raw potato slices—they'll naturally open as they cook.
• Get garlic butter between the slices whenever possible.
• Use freshly shredded cheese for smoother melting.
• Add the cheese near the end rather than cooking it for several hours.
• Check tenderness rather than relying only on cooking time.
• Large potatoes can take considerably longer than small ones.

The Secret to Getting Flavor Between Every Layer

Hasselback potatoes can look impressive while still tasting surprisingly plain inside if all the seasoning stays on top.

That's why this recipe uses the garlic butter twice.

The first coating flavors the potatoes as they slowly cook. Later, once the slices have naturally spread apart, the second coating can penetrate much deeper.

Then the cheese goes into those same openings.

The result is layers of potato → garlic butter → potato → melted cheese rather than a plain potato with cheese sitting only on its surface.

How to Avoid Watery Slow Cooker Potatoes

Slow cookers trap steam, while conventional ovens allow moisture to evaporate.

That means Hasselback potatoes made entirely in a slow cooker will be soft and tender rather than truly crispy.

For better results, avoid adding water or broth. The potatoes don't need it.

You can also place a clean kitchen towel or several layers of paper towel underneath the slow cooker lid to catch condensation, making sure it is securely positioned and kept away from the heating element according to your slow cooker's safety guidance.

Want Crispy Tops?

For the best of both worlds, let the slow cooker make the potatoes tender and use your oven for a quick finish.

Once the cheese has been added, carefully transfer the cooked potatoes to a foil-lined baking sheet.

Broil for approximately 2–4 minutes, watching constantly.

The cheese will bubble and develop browned spots while the exposed potato edges become noticeably crispier.

An air fryer also works well for finishing a few potatoes at a time.

The Best Cheese Combination

Sharp cheddar brings the bold cheese flavor, while Monterey Jack provides excellent melt and stretch.

Parmesan adds salty, savory depth.

Together, they give you a better result than using only one cheese.

Other good melting cheeses include:

• Gruyère
• Colby Jack
• Pepper Jack
• Mozzarella
• Provolone

Delicious Variations

Loaded Bacon Cheddar

Add crispy bacon, extra sharp cheddar, sour cream, and chives.

Garlic Parmesan

Skip the cheddar and use plenty of Parmesan, mozzarella, garlic butter, and fresh parsley.

Jalapeño Popper

Use cheddar and Pepper Jack, then top with jalapeños and a little cream cheese.

French Onion

Use Gruyère instead of cheddar and finish with deeply caramelized onions.

Ranch Cheddar

Add 1–2 teaspoons ranch seasoning to the garlic butter and finish with cheddar and bacon.

Italian Hasselback Potatoes

Use mozzarella and Parmesan with Italian seasoning, garlic, and fresh basil.

What to Serve With Them

These potatoes are especially good alongside:

• Grilled steak
• Roast beef
• Baked chicken
• Garlic herb chicken
• Pork chops
• Meatloaf
• BBQ ribs
• Pulled pork
• Grilled vegetables
• Green beans
• Garden salad

For a classic American comfort-food dinner, pair them with steak or roasted chicken and green beans.

Make-Ahead Tips

The garlic herb butter can be mixed 1–2 days ahead and refrigerated.

You can also wash and slice the potatoes several hours before cooking. Keep them submerged in cold water in the refrigerator to prevent browning.

Before putting them in the slow cooker, drain and dry them very thoroughly so excess water doesn't create additional steam.

Storage

Refrigerate leftover potatoes in an airtight container for up to 3–4 days.

Because the potatoes already contain cheese and butter, refrigerate them promptly after the meal.

How to Reheat

Oven

Bake at 375°F (190°C) for approximately 15–20 minutes, until heated through and the edges begin crisping again.

Air Fryer

Reheat at approximately 350°F (175°C) for 5–8 minutes.

This is one of the best methods for restoring texture.

Microwave

Microwave until hot for the quickest option, although the potato edges will remain soft.

Notes

• Makes approximately 6 servings.
• Cooking time varies significantly depending on the size and variety of potatoes.
• Don't add the cheese at the beginning; several hours of slow cooking can cause it to separate and become oily.
• The slow cooker produces exceptionally tender potatoes, but use a quick broiler or air-fryer finish if crispy edges are important.
• For the most appetizing presentation, make sure the potatoes' slices are visibly opened and filled with melted cheddar, garlic herb butter, Parmesan, and fresh chives, with some cheese naturally bubbling down the sides.