Sour Cream and Onion Hasselback Potatoes Recipe

Name: Sour Cream and Onion Hasselback Potatoes Recipe
Prep time: 20 min
Cook time: 75 min
Total time: 95 min
Yield: 4
Cuisine: American
Ingredients: 4 medium russet potatoes; 3 tablespoons olive oil; 1 packet (1 oz) dry sour cream and onion soup mix; 1/2 cup sour cream; 1/4 cup milk; 1 cup shredded cheddar cheese; 3 tablespoons melted butter; 2 tablespoons chopped fresh chives; Salt and black pepper to taste

The first time I tried making these potatoes, I was trying to impress my in-laws. I’d seen a picture online and thought, how hard could it be? Well, let me tell you, I ended up with something that looked more like a potato porcupine that had been in a fight. The slices were all uneven, some were cut clean through, and I completely forgot to baste them. They came out dry as a bone. My father-in-law, god bless him, still tried to cut one with a steak knife. The sound still haunts me. But after a lot of trial and error, I finally nailed this Sour Cream and Onion Hasselback Potatoes Recipe, and now it’s my go-to side dish for pretty much everything.

Recipe Card

Recipe Title	Sour Cream and Onion Hasselback Potatoes Recipe
Servings	4
Prep Time	20 minutes
Cooking Time	1 hour 15 minutes
Calories	About 320 per serving

Ingredients

4 medium russet potatoes
3 tablespoons olive oil
1 packet (1 oz) dry sour cream and onion soup mix
1/2 cup sour cream
1/4 cup milk
1 cup shredded cheddar cheese
3 tablespoons melted butter
2 tablespoons chopped fresh chives
Salt and black pepper to taste

Let’s talk potatoes. Russets are the best because they get so fluffy inside. I once used red potatoes and they just didn’t fan out right, they were too waxy. The sour cream and onion soup mix is the magic. Don’t get the dip mix, I did that once and it was way too salty. And for the love of all that is good, use full-fat sour cream. The light stuff can get a little watery when it bakes.

Directions

Preheat your oven to 425°F (220°C).
Wash and scrub the potatoes really well. Dry them off completely.
Place a potato on a cutting board. Put two chopsticks or wooden spoons on either side of it, running lengthwise.
Using a sharp knife, slice down vertically until the knife hits the chopsticks. Make slices about 1/4-inch apart.
Repeat with all the potatoes.
In a small bowl, mix the olive oil with half of the sour cream and onion soup mix.
Brush this mixture all over the potatoes, making sure to get it in between the slices.
Sprinkle the potatoes with a little salt and pepper.
Place them on a baking sheet and bake for about 60-70 minutes.
While they bake, mix the sour cream, milk, and the other half of the soup mix in a bowl.
About 10 minutes before the potatoes are done, pull them out and carefully spoon the sour cream mixture over the top, letting it drip down into the slices.
Sprinkle the shredded cheese over everything.
Put them back in the oven for 5-10 more minutes, until the cheese is melted and bubbly.
Drizzle with the melted butter and sprinkle with fresh chives before serving.

The chopstick trick is a lifesaver. The first time I didn’t use it, I sliced one potato completely in half. It was a tragedy. Also, don’t be shy with the oil and soup mix. You really gotta get your hands in there and pry the slices apart a bit to get the flavor in there. I was too gentle at first and the centers of the slices were totally bland. And that last butter drizzle? Don’t skip it. It makes everything glisten and taste amazing.

I love making these for a weekend dinner because they feel fancy but they’re really not that hard. They’re the ultimate comfort food. The biggest mistake I see people make is rushing the baking time. If the potatoes aren’t almost fully cooked before you add the sour cream and cheese, you’ll have raw potato in the middle and a burnt top. Not a good combo. I’ve been there.

My husband now requests these all the time. He calls them my “fancy restaurant potatoes” which always makes me laugh because of my first disastrous attempt. They’re also surprisingly good as leftovers. Just pop them in the toaster oven to re-crisp. The microwave makes them sad and soggy, trust me on that.

If I were to change one thing, I might add some crispy fried onions on top after they come out of the oven for extra crunch. Sometimes I mix a little garlic powder into the oil, too. It’s a really flexible recipe once you get the basic method down. It seems like a lot of steps, but it’s mostly just waiting for them to bake.

Nutrition Info (per serving)

Calories	Carbs	Fat	Protein
320	35g	18g	8g

Okay so it’s not a salad. I know. But it’s a side dish, you’re not eating the whole pan by yourself! I’ve tried to make it lighter by using Greek yogurt instead of sour cream, and it works okay, but the tang is a little different. You could also use a low-fat cheese. For my gluten-free friends, just double check that your soup mix is gluten-free, a lot of them are!

Ingredient Swaps

Ingredient	Substitution
Sour Cream	Plain Greek Yogurt
Cheddar Cheese	Monterey Jack or Gruyère
Sour Cream & Onion Soup Mix	Onion soup mix + 1 tbsp dried dill
Russet Potatoes	Yukon Gold Potatoes

I’ve tried most of these swaps. The Greek yogurt works in a pinch but it can separate a little if you bake it too long. Gruyère cheese is amazing but it’s a bit pricier, so I save that for special occasions. Using Yukon Golds changes the texture completely, they’re creamier but don’t get as crispy on the edges. It’s a trade-off.

Tips

Use the sharpest knife you have. A dull knife will mash the potato instead of slicing it.
Don’t crowd the baking sheet. Give them space so the heat can circulate and crisp them up.
Baste the potatoes halfway through cooking with the drippings in the pan.
Let them rest for 5 minutes after baking before you try to move them.

The resting tip I learned the hard way. I was so excited to serve them once that I just grabbed one with tongs and it completely fell apart on the way to the plate. It was a mess. Letting them sit for just a few minutes lets the cheese and everything set up a bit so they hold their shape. And basting is a game-changer for crispiness. I used to just put them in and forget them, but that mid-way baste makes all the difference.

FAQ

Can I make these ahead of time?
You can prep them up to the point of baking. Do all the slicing and oiling, then cover them and keep them in the fridge for a few hours. The slices might oxidize and turn a little gray, but it doesn’t affect the taste. Just take them out about 20 minutes before you bake so they aren’t ice cold.

My potatoes won’t fan out! What am I doing wrong?
You’re probably not slicing deep enough. The chopsticks should stop you from cutting all the way through, but you need to cut about 3/4 of the way down. Give the potato a little gentle squeeze after it’s sliced to help open it up. Also, baking them at a high enough temperature is key for that “blooming” effect.

Is there a faster way to make these?
Not really, and I’ve looked! The baking time is what makes the insides tender and the edges crispy. You could parboil the whole potatoes for about 10 minutes before slicing to reduce the oven time, but I’ve found that makes them more likely to fall apart. It’s a recipe worth the wait.

That’s everything I know about making Sour Cream and Onion Hasselback Potatoes! Hope you give it a try, and if you mess it up, you’re in good company—I’ve had my fair share of kitchen disasters with this one. Let me know how it goes!