Golden Crispy Roasted Potatoes and Onions

Craving the ultimate side dish that combines a shatteringly crisp exterior with a fluffy, tender middle? These golden crispy roasted potatoes and onions deliver incredible texture and rich, savory flavor. Simple ingredients and high-heat roasting transform humble root vegetables into a spectacular accompaniment that steals the show at any dinner table.

Achieving the perfect roasted potato requires a balance of high heat, the right fat combination, and uniform slicing. This recipe pairs sliced potato rounds with sweet onions, coated in a luscious mixture of melted butter, olive oil, and fragrant dried herbs.

As they roast, the onions caramelize, releasing sweet juices that mingle with the rich butter, while the potatoes develop a deeply browned, sizzling crust. It is a rustic, comforting dish that fills the kitchen with an irresistible aroma.

Ingredients

Why this recipe works

The secret to the exceptional crispiness lies in combining butter and olive oil. While butter provides an unmatched rich, savory flavor and aids in beautiful browning, its milk solids can burn at high roasting temperatures.

Mixing it with olive oil raises the overall smoke point, allowing the potatoes to roast at a high temperature for an extended period without scorching. This combination ensures a golden, crispy crust while maintaining a rich, buttery flavor profile.

Roasting the potatoes alongside sliced onions creates a wonderful contrast in textures and flavors. As the onions cook, they release moisture that helps steam the interior of the potato slices, making them incredibly tender.

Once that moisture evaporates, the natural sugars in the onions caramelize, clinging to the crispy edges of the potato rounds. This dual-action cooking process guarantees a fluffy interior and a perfectly browned, crunchy exterior.

Notes and substitutions

For the best results, select waxy or medium-starch potatoes like Yukon Gold. They hold their shape beautifully during roasting and develop a creamy, buttery texture inside while crisping up perfectly on the outside.

If Yukon Golds are unavailable, Russet potatoes offer an extra-fluffy interior, though they may break apart slightly more when tossed. Ensure the potatoes are sliced to a uniform thickness, about one-quarter inch, to guarantee even cooking.

The choice of roasting pan also impacts the final texture. A dark metal roasting pan or a heavy cast-iron skillet absorbs and distributes heat more efficiently than glass or ceramic dishes. This helps the fats sizzle aggressively, creating that coveted bottom crust on the potato rounds. For the herbs, a dried blend of rosemary, thyme, and oregano provides a classic savory note that complements the sweet roasted onions perfectly.

• unsalted butter: vegan butter or additional olive oil for a completely dairy-free version
• dried mixed herbs: dried rosemary, dried thyme, or Italian seasoning

Equipment

• dark roasting pan
• chef knife
• cutting board
• measuring spoons