Golden Crispy Roasted Potatoes and Onions

Golden, crispy-edged roasted potatoes and onions are the side dish that disappears first from the table. This recipe delivers exactly that: each potato round turns deeply caramelized and crunchy on the outside while staying buttery and tender inside. Sweet onions roast alongside, becoming soft and jammy. All you need is one pan, a few pantry staples, and about 50 minutes. The result is a rustic, comforting dish that pairs with almost any main course, from roast chicken to a simple steak.

Roasted potatoes are a classic, but getting them truly crispy—not just browned—requires the right technique. This recipe uses Yukon Gold potatoes, which have the perfect balance of starch and moisture, and a hot oven to coax out their natural sweetness. Slicing them into rounds increases the surface area, so every piece gets a golden, crunchy edge.

Onions are the perfect partner: they caramelize slowly, adding a subtle sweetness and depth. A simple herb butter of garlic, thyme, and rosemary coats everything, making each bite fragrant and rich. The result is a side dish that feels special but comes together with minimal effort.

Ingredients

Why this recipe works

The key to crispy roasted potatoes is starting with a hot oven and giving the potatoes enough space on the pan. At 425°F (220°C), the exterior of each potato slice dehydrates quickly, forming a crisp crust before the inside turns soft.

Slicing the potatoes into rounds rather than chunks exposes more surface area, which means more crispy edges per bite. The high heat also caramelizes the natural sugars in the potatoes and onions, creating a deep, savory-sweet flavor that you can't get from boiling or steaming.

The herb butter does double duty: it adds flavor and helps with browning. The milk solids in the butter promote Maillard browning, while the olive oil raises the smoke point, so the mixture can get hot without burning.

Tossing the potatoes and onions in this mixture ensures even coating, and flipping them halfway through guarantees both sides get equal time against the hot pan. The result is a batch of potatoes that are uniformly golden, with a satisfying crunch that gives way to a fluffy, tender center.

Notes and substitutions

Yukon Gold potatoes are the best choice here because they hold their shape during roasting and have a buttery flavor. Russets would work but are more prone to falling apart. If you prefer a red potato, they'll be slightly less fluffy but still delicious.

The onion can be yellow, white, or even red—all will caramelize nicely. For the herbs, fresh thyme and rosemary are ideal, but if you only have dried, use a third of the amount. Make sure the garlic is minced finely so it doesn't burn.

A large rimmed baking sheet is essential to catch any juices from the onions. If you don't have one, use a roasting pan or a cast-iron skillet. The vegetables should be in a single layer; overcrowding will cause them to steam instead of crisp. If you need to double the recipe, use two pans and rotate them halfway through. The potatoes are best served immediately, but they can be kept warm in a low oven for up to 30 minutes without losing too much crunch.

• Yukon Gold potatoes: Russet potatoes can be used, but they are starchier and may break apart more easily; adjust cooking time if needed.
• Fresh thyme: Use 1 teaspoon dried thyme if fresh is unavailable.
• Unsalted butter: Salted butter can be used—just reduce the added salt to 1/2 teaspoon.

Equipment

• Large rimmed baking sheet
• Mixing bowl
• Spatula
• Chef's knife
• Cutting board