Big Little Recipes

How to Roast Potatoes Like My 91-Year-Old Grandma

This week’s Big Little Recipe is a family favorite perfect for Thanksgiving.

November 16, 2021

A Big Little Recipe has the smallest-possible ingredient list and big everything else: flavor, creativity, wow factor. That means five ingredients or fewer—not including water, salt, black pepper, and certain fats (like oil and butter), since we're guessing you have those covered. Inspired by the column, the Big Little Recipes cookbook is available now. Like, right now.

My grandma, Jolly, has been making these potatoes for 72 years. She knows this because that was when she got married, the first time, when she was 19, and when you get married, the first time, when you’re 19, you have to learn all sorts of things, like how to make potatoes.

But I’m getting ahead of myself. Because even though in my family we call them Grandma Potatoes—not Grandma’s Potatoes, the apostrophe-s was dropped decades ago—they actually started with her mom, my great-grandmother, Ethel.

Raising two kids in the 1930s, Ethel used canned potatoes. She tossed them in oil and spices, then roasted them in a roaring oven until they became as crispy as a drive-through hash brown. Ever since, they have been my family’s most-requested holiday side, one that just so happens to be easy enough to make on a weeknight when a craving strikes (which it will).

It was Grandma who pivoted from the canned convenience, opting instead for fresh potatoes, in all their dirty glory. Sometimes peels them, sometimes doesn’t, depending on her mood. But what she always does, in homage to her mom, in order to mimic that canned-potato softness, is parcook them.

Parcook is culinary-school-speak for partially cooking an ingredient, so it can be finished later on. This is useful in restaurants, when an order comes in and you only have a few minutes to make it. And with potatoes, it’s even more useful, whether you’re in a restaurant or at home.

As food science authority J. Kenji López-Alt puts it on Serious Eats, “The boiling and roughing-up steps are the real key. They create a thin slurry of mashed potato that clings to the surface of the potato chunks, which ends up crisping beautifully in the oven as the potatoes roast.”


Beyond better texture, the flavor is better, too. Because the water is aggressively salted—I eyeball 1 tablespoon of kosher salt per quart of boiling water—the potatoes are properly seasoned even before they’re, well, seasoned. Which makes them happier, which makes Grandma happier, which makes me happier.

Once they’re almost fork-tender, they are drained and dumped onto a sheet pan, where they are tossed with a lot of olive oil, sweet paprika, garlic powder, dried rosemary, salt, and pepper. It’s this humble spice mixture that’s signature Grandma. Swapping in fresh garlic or rosemary would ruin the effect, so don’t you dare.

Likewise, measuring is not welcome here. Even though she’s made these potatoes hundreds of times, Grandma has never measured the oil or the spices. “Never!” And while she gave me permission “to measure it out, you know, if you want to write a recipe”—for once, I opted not to. That just isn’t how they’re made.

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See what other Food52 readers are saying.

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    Emma Laperruque
Emma was the food editor at Food52. She created the award-winning column, Big Little Recipes, and turned it into a cookbook in 2021. These days, she's a senior editor at Bon Appétit, leading digital cooking coverage. Say hello on Instagram at @emmalaperruque.


patricia G. April 19, 2023
This is the way my grannie roasted potatoes, too. Parboiled, drained, returned to the pot...then she clamped a lid on the pot, and shook it vigorously, rattling the potatoes inside. The first time I tried I was too timid. "Go on, give them a good bash," she said. She used floury potatoes, and preheated the cooking fat (often beef lard) in the roasting tin. Hot oven. I use 425 F. And more often the not olive oil these days. For seasonings: salt and pepper, crumbled dried rosemary, some fennel seeds.
Frank May 4, 2022
I've made a ton of roasted potatoes before, but I will try Grandma roasted next time. I really love watching your videos. You make it clear, there are no unusual techniques or ingredients. I also love the fact your kitchen is normal and your pans show years of cooking in them. The pace and sound of your voice is comforting and it makes me believe I can end up with the same dish you are making. Hope this doesn't sound too weird. Don't change a thing.
Emma L. May 4, 2022
That's very kind, thanks Frank!
Vicki L. November 19, 2021
How hot an oven do you use? Or do you use the broiler?
Emma L. May 4, 2022
Hi Vicki! The full recipe is here: