Crispy Garlic Parmesan Roasted Potatoes Step-by-step instructions

Before you start

Before you start, heat the oven to 425°F (220°C) and position a rack in the middle. Wash and dry the baby potatoes thoroughly, then cut them in half. Mince the garlic, chop the parsley, and grate the Parmesan if you are using a block.

Have a large bowl and a rimmed baking sheet ready. If you like, line the baking sheet with parchment paper for easier cleanup, though the potatoes will brown best directly on the metal.

Instructions

Season and Arrange

1. 1Prep and season the potatoes
   Heat the oven to 425°F (220°C). In a large bowl, toss the halved baby potatoes with olive oil, minced garlic, kosher salt, and black pepper until every piece is evenly coated.
   Look for The potatoes glisten with oil and the garlic is evenly distributed.
   Tip Cut larger potatoes into uniform halves so they roast evenly.
2. 2Arrange on the baking sheet
   Spread the potatoes in a single layer on a baking sheet, cut side down. Make sure they are not overcrowded; leave a little space between each piece so they brown rather than steam.
   Look for The potatoes are nestled snugly, cut side down, with space between them.
   Tip Use a rimmed baking sheet to catch any juices.

The potatoes are coated in a glossy mixture of olive oil, garlic, salt, and pepper. They are arranged cut side down on the baking sheet, with a little space between each piece. The garlic is evenly distributed but not clumped. The kitchen smells fresh and savory, and the baking sheet is ready for the oven.

Roast to Golden

3. 3Roast until golden and crisp
   Roast for 25 to 30 minutes, until the bottoms are deep golden brown and the potatoes are tender when pierced with a fork. Do not stir too often; let them develop a crust.
   Look for The edges are browned and the kitchen smells of roasted garlic.
   Tip If they stick, wait a minute — they release when properly caramelized.
4. 4Add Parmesan and parsley
   Remove the baking sheet from the oven. Sprinkle the grated Parmesan and chopped parsley over the hot potatoes. Toss gently with a spatula to coat, scraping up any crispy bits from the pan.
   Look for The cheese melts slightly and clings to the potatoes.
   Tip The residual heat softens the Parmesan just enough to create a savory crust.

After 25 to 30 minutes, the potatoes have transformed: the cut sides are deeply browned and crisp, and the flesh is tender when pierced.

The edges are caramelized and slightly curled, and the aroma of roasted garlic fills the kitchen. The potatoes release easily from the pan, and the surface feels firm and crunchy.

Finish and Serve

5. 5Serve hot
   Transfer the potatoes to a warm serving plate. Serve immediately while the crust is at its crispiest and the cheese is still melty.
   Look for The potatoes are steaming and the Parmesan is fragrant.
   Tip A final pinch of flaky salt brightens the flavors.

The hot potatoes are tossed with grated Parmesan and parsley, which melt and cling to the surface. The cheese is soft and savory, the parsley bright green. The potatoes are piled on a serving plate, steaming and fragrant, with a visible golden crust and a hint of garlic in every bite.

Common mistakes

A common mistake is overcrowding the baking sheet. If the potatoes are packed too tightly, they will steam instead of brown, resulting in soft, pale potatoes. Spread them in a single layer with space between each piece.

Another mistake is stirring too frequently — let them sit undisturbed so a crust can form. Finally, adding the Parmesan during roasting can cause it to burn and turn bitter. Always add it after the potatoes come out of the oven, using the residual heat to melt it gently.

How to tell it’s done

The potatoes are done when the cut sides are deep golden brown and crisp, and a fork or skewer slides into the flesh with little resistance. The interior should be fluffy and tender, not dense or raw.

If the potatoes are browning too quickly but aren't yet tender, lower the oven to 400°F (200°C) and continue roasting until they are cooked through. The cheese and parsley are added after roasting, so the final dish should have a golden, cheesy crust with visible flecks of green.