The potatoes come out of the pot soft enough to press, but they still need to hold together when they hit the baking sheet. I keep the smash gentle and stop at about half an inch thick; that gives each potato plenty of flat surface to brown while leaving a creamy center. These crispy garlic Parmesan smashed potatoes bring that contrast to the table without complicated prep.
Small Yukon Golds make the job easier because they cook evenly and stay together under the glass. A brush of seasoned olive oil reaches the crannies, and the cheese goes on only after the potatoes have started to turn golden. That way, you get crisp edges beneath a browned Parmesan topping, with parsley to finish each warm, savory bite.
Kitchen Note
Give the drained potatoes their full five minutes in the colander. I used to rush that pause, but the drier surfaces take on a better roast and the potatoes are easier to handle when you smash them.
Save these crispy garlic Parmesan smashed potatoes for the next time you want golden edges and a browned, savory cheese topping.
Why the Parmesan Goes on After the Potatoes Crisp
Parmesan needs less time in the oven than the potatoes do. If it goes on at the start of roasting, its fine shreds can darken before the potato edges have had their full time to crisp. Giving the potatoes a head start lets their surfaces brown first, then the cheese gets its own short stretch in the heat to turn golden.
That second roast is brief, so keep an eye on the color rather than waiting for the cheese to become deeply browned. Finely grated Parmesan melts and colors quickly; a thick blanket of larger shreds takes longer and can cover the edges you want crisp. The result should be a light, savory layer with golden spots, not a heavy crust that hides the potato.
This timing also gives you a useful visual cue: the potatoes should already have golden edges before the Parmesan goes on. If they still look pale at that point, let them finish their first roast before adding the cheese. The topping is the final stage, not a shortcut to browning the potatoes.
Why Small Yukon Golds and Finely Grated Parmesan Matter
- Small Yukon Gold potatoes — Their creamy texture pairs well with browned, crisp edges, and small potatoes are easy to smash whole. Pick potatoes that are close in size so they reach tenderness at roughly the same time. Other small waxy potatoes can work, though their centers won’t be quite as creamy.
- Olive oil — It coats the potato surfaces and carries the garlic and pepper across the craggy tops. A standard olive oil is perfectly suitable here; save a premium bottle for a dish where its flavor stands out more. Keep the oil divided so the pan gets its coating and the potatoes get their seasoned brush-on layer.
- Garlic powder — Powder distributes through the oil without leaving larger pieces on the surface. Fresh garlic is a poor direct swap at this oven temperature because the small pieces can scorch before the potatoes finish. Granulated garlic is the closest substitute; use the same measure and stir it into the oil.
- Finely grated Parmesan — Fine shreds spread into a thin layer and brown readily during the final roast. Grating a block gives the most even texture, though store-bought finely grated Parmesan is convenient and works. Coarser shreds can still be used, but expect a less delicate topping.
- Fresh parsley — Chopped fresh parsley adds a clean, green finish after roasting. Dried parsley won’t give the same fresh lift, so use fresh chives instead if you want a different garnish with a mild onion note.
From Tender Potatoes to Parmesan-Crusted Edges
Boil the potatoes and heat the pan
Put the potatoes, water, and 1 tablespoon of kosher salt in a 6-quart pot and bring the water to a boil over high heat. Lower the heat to a simmer and cook for 15–20 minutes, until a knife slips into the potatoes easily. While they cook, heat the oven to 450°F and brush a rimmed 18×13-inch baking sheet with 1 tablespoon of olive oil. If the knife still meets a firm center, give the potatoes more time rather than trying to smash them early.
Let the drained potatoes release steam
Drain the potatoes in a colander and leave them there for five minutes. They should feel tender but remain intact enough to lift onto the sheet. Don’t skip the pause to move straight to smashing; freshly drained potatoes are hot and wet on the outside. Handle them gently as you arrange them on the oiled baking sheet.
Smash and brush with the garlic oil
Use the bottom of a glass or measuring cup to press each potato to about 1/2 inch thick. Press straight down with a light touch; crushing them flat can break them into pieces that are harder to move. Stir together the remaining 3 tablespoons of olive oil with the garlic powder, black pepper, and remaining 1 teaspoon of kosher salt. Brush the mixture over the potatoes, letting it reach the uneven edges.
Roast, add the cheese, and finish
Roast for 20–25 minutes, until the edges look golden brown and crisp. Sprinkle the finely grated Parmesan over the potatoes and roast for another 5–7 minutes, watching for golden cheese. Scatter the chopped parsley over the top, then let the potatoes rest on the baking sheet for five minutes before serving. That brief rest gives the hot potatoes a chance to settle before you lift them from the pan.
Three Swaps That Keep the Potato Edges in Play
Use small red potatoes for a firmer center
Replace the Yukon Golds with small red potatoes and boil them until a knife pierces them easily. Their waxier texture holds together well when smashed, but the centers will be a little less creamy. Keep the potatoes similarly sized so they cook at a similar pace.
Make a dairy-free Parmesan-style topping
Use finely grated dairy-free Parmesan-style cheese in place of the Parmesan. Add it at the same point in the roast, but watch its color during the final minutes because plant-based varieties brown differently. The topping brings a similar salty, savory note, though it won’t taste exactly like dairy Parmesan.
Trade parsley for fresh chives
Use chopped fresh chives instead of parsley for a gentle onion flavor. Add them after roasting, just as you would the parsley, so they stay green and fresh-tasting. This keeps the topping savory while shifting the finish away from parsley’s grassy note.
Storage and Reheating
- Refrigerator: Store cooled leftovers in an airtight container for 3–4 days. The potatoes will soften in the refrigerator, even though the Parmesan topping remains flavorful.
- Freezer: Freeze in a single layer until firm, then transfer to an airtight container for up to 1 month. Thaw overnight in the refrigerator; the centers may be softer after freezing.
- Reheating: Arrange in one layer on a baking sheet and warm in a 425°F oven for 8–12 minutes, until hot and crisp at the edges. Microwaving heats them quickly but leaves the surfaces soft.
Questions That Come Up Before These Potatoes Hit the Table
Crispy Garlic Parmesan Smashed Potatoes
Ingredients
Equipment
Method
- Place the potatoes, water, and 1 tablespoon of the salt in a 6-quart pot.
- Bring to a boil over high heat, then simmer for 15–20 minutes, until the potatoes are easily pierced with a knife.
- While the potatoes cook, heat the oven to 450°F.
- Brush a rimmed 18x13-inch baking sheet with 1 tablespoon of the olive oil.
- Drain the potatoes and let them steam dry in the colander for 5 minutes.
- Arrange the potatoes on the prepared baking sheet and gently smash each one to about 1/2 inch thick with the bottom of a glass or measuring cup.
- Stir together the remaining 3 tablespoons olive oil, garlic powder, pepper, and remaining 1 teaspoon salt.
- Brush the mixture over the potatoes.
- Roast for 20–25 minutes, until the edges are golden brown and crisp.
- Sprinkle with Parmesan and roast for 5–7 minutes more, until the cheese is golden.
- Sprinkle with parsley.
- Let the potatoes rest on the baking sheet for 5 minutes before serving.