Crispy Parmesan Potatoes Recipe

Crispy Parmesan Potatoes Recipe

Make Crispy Parmesan Potatoes Recipe for crunchy, cheesy potatoes with a lacy Parmesan crust. Easy, show-stopping side in under an hour.

Ingredients

Instructions

Step 1: Preheat the oven and position the rack

Preheat the oven to 425°F (220°C) and move a rack to the upper-middle position so the potatoes get strong, even browning. This is the quiet first move that sets the heat profile for crisp edges; I like to let the oven run a few minutes while I prep so it’s reliably hot when the sheet hits it.

Step 2: Grease the baking sheet

Lightly grease a large, heavy, rimmed rectangular baking sheet (about 18 x 13 inches / 46 x 33 cm) with cooking spray or a teaspoon of olive oil — a dark metal sheet will yield the crispiest bottoms. Place the empty sheet on the Carrara marble nearby so it’s ready and familiar for later.

Step 3: Trim and size the potatoes

Check the baby Yukon Gold or small red potatoes and halve any that are larger than 1½ inches (4 cm) so every piece is uniform. Very small potatoes can be left whole. Pat them meticulously dry with paper towels; removing surface moisture is the single most important thing for maximum crunch.

Step 4: Combine oil and butter

In the same matte medium-grey mixing bowl you’ll use throughout, whisk together 3 tablespoons olive oil and 3 tablespoons melted, slightly cooled unsalted butter until glossy and combined. The bowl sits top-down on the marble for continuity — a clean, consistent tool to follow through the process.

Step 5: Add the dry seasonings to the oil

Stir fine sea salt, freshly ground black pepper, garlic powder, onion powder, smoked paprika and optional red pepper flakes into the oil-butter. Whisk until the spices are evenly suspended in the fat, creating a fragrant, orange-speckled dressing that will cling to the potatoes.

Step 6: Toss potatoes in the seasoned oil

Add the dried potatoes to the seasoned oil-butter in the matte grey bowl and toss vigorously for 1–2 minutes, turning and rubbing so every piece gets a thin, even sheen of spiced fat. The potatoes should look glossy, freckled with seasoning, and well coated.

Step 7: Mix Parmesan with cornstarch

In a small white ceramic bowl combine 1/2 cup finely grated Parmesan with 2 tablespoons cornstarch, stirring until the cheese is evenly dusted and slightly powdery; this mix will form the basis of the extra-crispy crust when it bakes.

Step 8: Coat potatoes with the Parmesan-cornstarch mix

Sprinkle the Parmesan–cornstarch mixture over the oiled potatoes and toss for 1–2 minutes until a thick, slightly pasty coating clings to each piece. The surface should look tacky and textured, the cheese visibly dusted across every crevice.

Step 9: Add the remaining Parmesan and reserve finishing cheese

Fold in the remaining 1/4 cup grated Parmesan and distribute it briefly so the coating is even. Reserve 2 tablespoons of finely grated Parmesan in a small glass jar for the finish; keep the jar beside the baking sheet for quick access.

Step 10: Arrange potatoes on the prepared sheet

Spread the coated potatoes in a single layer on the greased dark metal rimmed baking sheet, giving each piece breathing room. Place halved potatoes cut-side down for maximum flat contact with the hot metal so edges brown and crisp.

Step 11: Roast without stirring for the first interval

Slide the baking sheet into the hot oven and roast at 425°F (220°C) for 20 minutes without disturbing them. During this period the bottoms begin to set and color; resist the urge to shift them so the cheese-cornstarch crust can adhere and solidify.

Step 12: Loosen and flip the potatoes

Remove the sheet from the oven, use a thin metal spatula to carefully scrape and loosen the potatoes and flip them so the bottoms become exposed to heat. Work deliberately to keep as much crispy crust attached as possible when turning.

Step 13: Continue roasting until deep golden

Return the sheet to the oven and roast another 15–20 minutes at 425°F (220°C), watching as the surfaces transform into deep golden brown, crunchy exteriors while remaining tender inside — total roasting about 35–40 minutes.

Step 14: Optional final broil for extra color

If you want extra dark golden edges, switch the oven to broil in the last 3–5 minutes, watching very closely so the cheese doesn’t burn. Broiling intensifies those blistered, lacy Parmesan crisps.

Step 15: Finish with reserved Parmesan while hot

Immediately after removing the hot sheet from the oven, sprinkle the reserved 2 tablespoons finely grated Parmesan evenly over the potatoes and toss gently on the pan so the fresh cheese melts slightly into the warm crust, adding bright white flecks of melty texture.

Step 16: Taste and adjust seasoning

Taste a hot potato and, if desired, add a small pinch more sea salt or black pepper while the potatoes are still steaming so the seasoning adheres and closes the flavor loop.

Step 17: Garnish before serving

Transfer the crispy Parmesan potatoes (still on the rectangular sheet) to a warm, similarly-shaped platter or keep them on the baking sheet, scattering finely chopped parsley, chives and a dusting of lemon zest evenly across the top for fresh color and brightness.

Step 18: Serve immediately at peak crunch

Serve the potatoes immediately while they’re hottest and crunchiest; they pair beautifully with aioli, sour cream, or as a side to roasted meats. For leftovers, re-crisp on a baking sheet at 400°F (205°C) for 8–10 minutes.

Notes