Herb & Garlic Parmesan Roasted Potatoes

Why This Herb & Garlic Parmesan Roasted Potatoes Works

In the oven, the potatoes slowly dry out on the outside while staying soft inside. The olive oil coats each piece, so the heat can reach the surface evenly and the edges start to brown instead of steaming. As the potatoes roast, their insides loosen up and turn fluffy, but the skins stay a little firm, so each piece holds its shape when picked up.

Once the Parmesan hits the hot oiled potatoes, it sticks to the surface and starts to melt, then dries and hardens into a thin, salty crust. That cheese crust grabs onto the rough potato edges and gives a crisp bite. During roasting, the chopped rosemary, thyme, and garlic cling to the oil and cheese, so they don’t fall off and burn on the pan. By the time the tray comes out, there is a mix of crispy, browned bits on the outside and tender centers, with the fresh parsley added at the end so it stays bright and doesn’t wilt in the heat.

Mistakes To Avoid

Crowding the potatoes on the baking sheet makes them steam instead of roast. The trapped moisture keeps the edges from crisping, so they come out soft and pale instead of browned and a little crunchy.

Starting with potatoes that are very different in size leads to uneven cooking. Smaller ones turn dry and tough by the time the bigger ones finally get soft in the center, so the tray ends up with a mix of overdone and undercooked pieces.

Letting the garlic sit on top of the potatoes in big clumps causes burning. Those spots turn dark and bitter before the potatoes are tender, and the burnt bits stick to the pan instead of the potatoes.

Adding the Parmesan too early in the bowl instead of sprinkling it on the tray makes it soak up the oil. The cheese then melts into a greasy layer on the pan and doesn’t form those crisp, golden bits on the surface of the potatoes.