Spicy Herb Potato Chips

Why This Spicy Herb Potato Chips Works

In the oven, the thin potato slices dry out and firm up. Because they are cut so evenly, each slice cooks at about the same speed. As the heat moves through the potatoes, water inside the slices slowly steams out. Less water means the slices can crisp instead of staying soft in the middle.

Patting the potatoes dry before baking speeds this up. The olive oil coats each slice in a thin layer, so the surface heats more evenly and browns instead of burning in spots. While everything bakes, the starch near the surface of the potatoes sets and hardens, which is what gives the chips that snap when bitten.

As the chips crisp, the spices and dried herbs cling to the oily surface and stay in place. The cayenne, garlic powder, onion powder, rosemary, thyme, salt, and pepper spread over every slice, so each chip ends up with the same spicy, herby taste in every bite. Letting them cool a bit lets them finish firming up.

Mistakes To Avoid

Cutting the potatoes too thick means the centers stay soft while the edges start to brown. By the time the middle cooks through, the outside can turn hard or even burn, so the chips never get evenly crisp.

Skipping the drying step after washing leaves water on the slices. That water turns to steam in the oven, so the potatoes steam instead of dry out, and the chips come out bendy and leathery instead of crunchy.

Crowding the slices on the baking sheet causes them to overlap and trap moisture. Where they touch, they stay pale and soft, and only the exposed edges crisp, so the batch ends up half soggy, half overdone.

Letting them bake too long, especially after they first look golden, quickly leads to burnt edges and a bitter, harsh heat from the cayenne. The thin slices go from crisp to dry and hard in just a few extra minutes.