Recipe: Smashed Potato Casserole (2024)

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Nealey Dozier

Nealey Dozier

Nealey Dozier is a former wedding planner turned chef, culinary instructor, recipe developer, and food writer. She is based in Atlanta. You can find more of her Southern adventures in eating and entertaining at www.dixiecaviar.com.

updated Nov 15, 2019

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Recipe: Smashed Potato Casserole (1)

A make ahead-friendly recipe for creamy mashed potatoes baked in a casserole and topped with lots of Parmesan cheese.

Serves6 to 8

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Recipe: Smashed Potato Casserole (2)

Mashed potatoes are a family favorite, but this decadent casserole takes the classic to a whole new level. The flavors of a fully loaded baked potato are baked until gooey and bubbling, making this dish impossible to resist. It’s holiday-worthy for sure, but don’t wait for a special occasion. Add this comfort food to your list of fall favorites — and oh yeah, don’t forget to share!

A hazard of being a recipe developer is working ahead of the calendar, so I’ve probably been in fall cooking mode a bit longer than most. Thankfully this weekend will bring a drop in temperatures that will finally match the food I have been craving. What can I say other than bring on the braises, hot cocoa, and anything in a casserole dish!

This decadent side is my new cold weather go-to — it’s hearty comfort food in creamy, cheesy form. I’ve already brought it to a steak dinner and a Southern tailgate, both times to rave reviews. And since I’ve been getting plenty of recipe requests I figured it was time that I share.

One of the things I love about this casserole is how it can take many different forms. I’ve done variations with both hash browns and mashed potatoes, but I think smashed just might be my favorite — the chunky potatoes provide a welcome textural contrast to the sour cream and cheese. I’ve also tried both baking the potatoes and boiling them, and really you can do whichever method you like best. Sub Greek yogurt for a bit of tang or dress it up with silky crème fraîche. In the end it’s hard to mess this one up!

I promise this casserole will be gobbled up and have your family begging for more. After a long summer of salads and fresh veggies, go ahead and indulge.

Tester’s Notes

This casserole is such a smart recipe to have in your back pocket. It’s all the great things about mashed potatoes, made even better with extra cheese and a crispy lid. I love how make-ahead-friendly it is, which means it’s the perfect choice for Thanksgiving and other festive occasions throughout the colder months. I’ve increased the amount of milk from the original recipe to ensure the potatoes are nice and creamy and bumped up the Parmesan cheese so the top gets extra golden — two things I don’t think anyone will complain about.

Sheela, October 2018

Comments

A make ahead-friendly recipe for creamy mashed potatoes baked in a casserole and topped with lots of Parmesan cheese.

Serves 6 to 8

Nutritional Info

Ingredients

  • 3 pounds

    russet potatoes, peeled and cubed

  • 1 cup

    (8 ounces) sour cream or plain Greek yogurt

  • 1 cup

    whole or 2% milk, plus more as needed

  • 8 ounces

    sharp cheddar cheese, grated (about 2 1/2 cups)

  • 2

    medium shallots, minced (about 1/2 cup)

  • 2 teaspoons

    kosher salt

  • 1/2

    teaspoon freshly ground black pepper

  • 1/2 cup

    grated Parmesan cheese

Instructions

  1. Arrange a rack in the middle of the oven and heat to 350°F. Meanwhile, place the potatoes in a large pot, cover with water, and bring to a boil over medium-high heat. Reduce the heat to a simmer and cook until the potatoes are tender and a knife pierces easily to the center.

  2. Drain the potatoes, then return them to the pot. Add the sour cream or yogurt and milk. Using a potato masher, smash until your desired texture is reached, adding more milk as needed. Add the cheddar, shallots, salt, and pepper and stir to combine. Taste and season with more salt and pepper as needed.

  3. Transfer the potato mixture to a medium gratin or baking dish (about 2 1/2 quarts) and spread into an even layer. Bake until warmed through, about 30 minutes.

  4. Remove the baking dish from the oven. Turn the oven onto broil. Sprinkle the casserole with the Parmesan cheese. Broil until golden brown, 2 to 3 minutes.

Recipe Notes

Make ahead: This casserole can assembled in the baking dish and refrigerated up to 1 day ahead. Let sit at room temperature for at least 30 minutes before baking.

Storage: Leftovers can be refrigerated in an airtight container for up to 4 days.

Filed in:

autumn

Casserole

Cheese

dairy

dinner

Recipe: Smashed Potato Casserole (2024)

FAQs

Why are my smashed potatoes falling apart? ›

Smashed potatoes will fall apart if they are overcooked or if you try to mash them while they are still hot. Long story short - cook the potatoes until al dente (slightly firm). Don't overcook the potatoes! Last - cool the potatoes completely before smashing them.

How does Gordon Ramsay make smashed potatoes? ›

Gordon Ramsay's Smashed Potatoes are made with baby potatoes, olive oil, herbs like rosemary or thyme, garlic, salt, and pepper this dish serves 8 and takes about 1 hour, including boiling and roasting for a crispy exterior.

How do you thicken potato casserole? ›

Make a cornstarch slurry for a fast and easy thickener.

Use one tablespoon of cornstarch per cup of liquid you would like to thicken. Stir out all the lumps. A few minutes before your casserole is done, add it a little at a time until you are happy with the thickness. Then, let the casserole finish baking.

How do you thicken smashed potatoes? ›

Option 1: Turn up the heat on your stovetop to draw out the moisture. Option 2: Add a teaspoon of a thickening agent like cornstarch, flour or powdered milk until you reach the desired thickness. Option 3: Mix in 1 tablespoon of dehydrated potatoes until mashed potatoes are thicker.

Why do potatoes go gluey when smashed? ›

When breaking down the potatoes, it's important to take care not to "overwork" them. Violently breaking them down causes more starch to be released, which leads to stickier, pastier potatoes.

How many smashed potatoes per person? ›

People seem to really like mashed potatoes, so they eat a bit more. I generally allow one baking-sized potato per person, plus one extra, just in case. I bake them in their skins and then scoop them out to mash them.

Why put a raw egg in mashed potatoes? ›

It marries the hydrophilic with the hydrophobic, creating a smoother mash while adding a tiny bit of sweetness and tang. Mayo mashed potatoes do not taste like mayo (unless you add too much). Similarly, egg yolk mashed potatoes do not taste like egg yolks, though they certainly are yellow. They don't taste creamy.

Why do chefs soak potatoes in water? ›

Soaking potatoes in water helps remove excess starch. Excess starch can inhibit the potatoes from cooking evenly as well as creating a gummy or sticky texture on the outside of your potatoes. Cold water is used because hot water would react with the starch activating it, making it harder to separate from the potatoes.

What tool do you use to make smashed potatoes? ›

A potato ricer is widely regarded as the best tool for mashed potatoes that are smooth and fluffy. Built like a big garlic press, it works by pushing cooked potatoes (one or two at a time) through a perforated grate, creating stringy, broken-down potato bits without releasing a ton of starch.

Why do restaurants wrap potatoes in foil? ›

First of all, the original reason restaurants did this was to dress up the lowly potato and to hide any defects or bruises. So gold and aluminum foil sheets were painstakingly used to punish dishwashers and cooks who had some extra time on their hands… just my theory. First reason… the potato is around 80% water.

How to tell if casserole is done? ›

Poking a casserole with a toothpick or a fork to see if it comes out clean is a helpful way to know what's happening in the center. Shaking the pan will also tell you if everything is cooked and set.

Why is my casserole so watery? ›

Prep Vegetables Ahead Of Time

That's because vegetables naturally contain a lot of water in their raw form. When cooked, water leaches out, transforming your rich, gooey casserole into a liquidy slop. That doesn't mean you have to ditch your beloved veggies, though.

What does cornstarch do in a casserole? ›

Use as a Thickening Agent

Here's how it works: when cornstarch is added to a recipe, the starch molecules work to absorb water and thicken the mixture. When heated, those molecules swell and consume even more of the liquid in the recipe.

Why are my potatoes breaking apart? ›

If your potatoes have been growing in very dry soil, the potatoes themselves will have a fairly low moisture content when harvested. What this then means is that when the potatoes are build they absorb more water and fall to pieces quite quickly.

How do you keep potatoes from falling apart? ›

To further prevent potatoes from falling apart, try using waxy potato varieties like red potatoes or Yukon Gold. These types tend to hold their shape better when boiled. Additionally, avoiding overcooking and handling them gently when straining will help maintain their integrity.

What causes potatoes to disintegrate? ›

If potatoes are produced during a very dry growing season, they will tend to have a higher than normal solid content and less moisture. When these are cooked, they absorb more water than usual and, as a result, fall apart at the end of cooking.

Why are my mashed potatoes crumbly? ›

If you skimp on the butter and cream, the side dish will suffer as a result, turning out unappealingly dry. If this occurs, the outlet recommends correcting course with more fat: Adding more liquid in the form of melted butter, extra-virgin olive oil, cream, or full-fat milk.

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