The first time I served these golden-crusted, fluffy-centered beauties at a backyard gathering, they vanished in minutes—before the burgers even hit the grill. Years later, they’re still the dish friends text me about at 11 p.m. asking, “Wait, how did you get them that crispy?” The answer is a simple two-step cooking method plus a generous bath in garlicky, lemon-bright aioli that doubles as burger sauce, veggie dip, and midnight spoon food. Whether you need a show-stealing side for a holiday roast, a vegetarian main that feels decadent, or a game-day snack that outshines the wings, these smashed potatoes deliver every single time.

Why This Recipe Works

Double-cooking magic: Boiling first guarantees a creamy interior; smashing + roasting creates lacy, crunchy edges.
Starch strategy: Dusting the hot potatoes with a whisper of cornstarch before roasting amplifies crunch without gluten.
Flavor-packed aioli base: Using roasted garlic instead of raw tames harsh bite and adds caramel sweetness.
Herb timing: Stirring fresh herbs into the aioli after the emulsion prevents discoloration and keeps flavors vibrant.
Sheet-pan ease: Everything roasts on one pan—minimal dishes, maximum crisp surface area.
Make-ahead friendly: Boil and smash the potatoes up to 24 hours ahead; refrigerate on the tray so you’re minutes from golden glory.
Vegetarian main: Serve atop peppery arugula with a soft-boiled egg for a hearty, meatless dinner.

Ingredients You'll Need

Great smashed potatoes start with the right spud. Look for small, waxy varieties such as Dutch Yellow, Baby Yukon Gold, or Red Bliss—round so they sit flat, 1½–2 inches in diameter so they cook evenly, and thin-skinned so you can skip peeling. Avoid russets; their high starch content turns them fluffy, not creamy. At the farmers’ market, choose firm potatoes without green spots or sprouts; those signals indicate solanine, a bitter compound that won’t roast away.

For the aioli, reach for a neutral, high-quality oil like grapeseed or sunflower. Olive oil can overpower the herbs, so I blend in 20% extra-virgin olive oil for fruitiness and 80% neutral oil for a clean emulsion. Egg-wise, room-temperature yolks emulsify faster—pull them from the fridge 30 minutes ahead. Roasting a whole head of garlic while the potatoes boil concentrates sugars, yielding a jammy, sweet paste that beats raw garlic any day.

Fresh herbs make the dip sing: parsley for grassiness, chives for oniony bite, and tarragon for subtle licorice. If tarragon feels too fancy, swap in dill or basil. Lemon zest brightens without thinning the aioli; skip bottled juice which can taste metallic. A pinch of smoked paprika on the potatoes echoes the grill and adds russet undertones.

Finally, flaky sea salt such as Maldon brings crunch and salinity; its pyramid crystals adhere to the hot fat, giving each bite a delicate crunch. Kosher salt works in a pinch, but save the iodized shaker for pasta water.

How to Make Crispy Smashed Potatoes with a Garlic and Herb Aioli

Roast the garlic

Preheat oven to 400°F (200°C). Slice the top off a whole head of garlic to expose the cloves. Drizzle with 1 tsp olive oil, wrap tightly in foil, and roast directly on the oven rack for 40 minutes until cloves are mahogany and soft. Cool slightly, then squeeze out the paste; you should have about 2 Tbsp.

Boil the potatoes

Scrub 2 lb baby potatoes but leave skins on. Place in a large saucepan, cover with cold, well-salted water by 1 inch, add 2 smashed garlic cloves and a bay leaf. Bring to a boil, reduce to a lively simmer, and cook 15–18 minutes until a paring knife slides through with zero resistance. Drain thoroughly; steam-dry in the colander 2 minutes so edges roughen—those fuzzy bits equal crunch later.

Season and smash

Transfer potatoes to a rimmed sheet pan lined with parchment for easy cleanup. Drizzle with 3 Tbsp melted ghee or neutral oil, sprinkle 1 tsp cornstarch, ½ tsp smoked paprika, and ¾ tsp kosher salt. Toss to coat. Using the flat bottom of a sturdy drinking glass or a measuring cup, press each potato to ½-inch thickness; the skin will split and the flesh will fan out—perfect for crisping. Leave space between pieces so steam can escape.

Roast to golden glory

Slide the pan into the middle of the 400°F oven. Roast 25 minutes, then flip each potato with a thin spatula, dragging them through the rendered fat. Rotate pan and roast another 20–25 minutes until edges are deep amber and centers are creamy. Finish with a 2-minute broil for extra blister if desired; watch closely to prevent char.

Start the aioli base

While potatoes roast, add 2 egg yolks, 1 Tbsp Dijon mustard, 1 Tbsp lemon juice, and ½ tsp fine sea salt to the bowl of a mini food processor. Add the roasted garlic paste. Blitz 5 seconds to combine.

Emulsify the oil

With the motor running, drizzle ¾ cup neutral oil followed by ¼ cup extra-virgin olive oil in a thin, steady stream. The mixture will thicken and lighten to a pale gold. If it becomes too thick, add cold water 1 tsp at a time to loosen. Taste and adjust salt or lemon.

Fold in herbs

Transfer aioli to a small bowl. Stir in 2 Tbsp minced parsley, 1 Tbsp thinly sliced chives, 1 tsp chopped tarragon, and ½ tsp lemon zest. Cover and chill 15 minutes to meld flavors; it will thicken slightly.

Serve & devour

Pile the hot potatoes onto a platter, shower with flaky sea salt and an extra crack of black pepper. Dollop or generously swipe the aioli underneath or alongside for dipping. Garnish with reserved fresh herbs and lemon wedges for brightness. Serve immediately—crisp waits for no one.

Expert Tips

Cast-iron crisp hack

Preheat your sheet pan in the oven 5 minutes before adding potatoes. Searing bottoms against hot metal jump-starts caramelization.

Uniform smashing

Place a piece of parchment over the potatoes before pressing; it prevents sticking and keeps the glass clean.

Flavor infusion

Add 1 tsp miso paste to the aioli for a subtle umami depth that keeps guests guessing.

Spice switch-up

Replace smoked paprika with za’atar or Cajun seasoning for a different vibe without extra effort.

Dairy-free crunch

Swap ghee for refined coconut oil; it has a high smoke point and neutral flavor once hot.

Reheat like a pro

Revive leftovers in a 425°F air-fryer for 4 minutes; they emerge almost as crisp as day one.

Variations to Try

Mediterranean: Replace herbs with oregano and mint, and fold crumbled feta into the aioli. Finish potatoes with a squeeze of harissa for heat.
Loaded Baked: Top hot potatoes with shredded cheddar, crispy bacon bits, and a dollop of aioli spiked with chives and black pepper.
Asian-Inspired: Brush smashed potatoes with sesame oil, dust with togarashi, and serve aioli blended with 1 tsp soy sauce and ½ tsp yuzu kosho.
Vegan: Replace aioli with aquafaba mayo blended with silken tofu and roasted garlic; nutritional yeast adds cheesy depth.
Breakfast Stack: Layer potatoes on toasted sourdough, add aioli, avocado slices, and a runny poached egg for a brunch showstopper.

Storage Tips

Leftover potatoes will keep in an airtight container in the refrigerator for up to 4 days, though their crisp diminishes. To reheat, spread on a sheet pan and warm in a 425°F oven for 10 minutes, flipping halfway. The aioli can be refrigerated up to 1 week; surface browning is harmless—simply stir. Because it contains raw egg yolk, avoid room-temperature holding beyond 2 hours. For longer storage, freeze potatoes before the second roast: boil, smash, season, and freeze in a single layer. Once solid, transfer to a bag; roast from frozen 30–35 minutes at 425°F, adding 5 extra minutes.

Do not freeze finished aioli; emulsions break upon thawing. Instead, freeze roasted garlic paste in 1-tsp dollops and whip fresh mayo as needed.