Roasted diced potatoes are crisp at the edges, tender inside, and simple to make with everyday pantry ingredients. Cutting the potatoes into even cubes and giving them room on a hot baking sheet helps them brown beautifully without parboiling or fuss.
Ingredients
- 2 pounds (about 900 g) Yukon Gold or russet potatoes
- 2 tablespoons olive oil
- 3/4 teaspoon kosher salt, or to taste
- 1/2 teaspoon freshly ground black pepper
- 1 teaspoon garlic powder
- 1 teaspoon dried rosemary or dried thyme (optional)
- 1 tablespoon chopped fresh parsley, for finishing (optional)
Instructions
- Heat the oven and pan. Set a rack in the center of the oven and preheat to 425°F (220°C). Put a large, rimmed baking sheet in the oven as it heats. A hot pan helps the potatoes start browning as soon as they are added.
- Prepare the potatoes. Scrub the potatoes and dry them well. Peel them if you prefer; the skins are fine to leave on. Cut into even 1/2- to 3/4-inch cubes so the pieces finish cooking at about the same time. If you rinse the cut potatoes to remove excess surface starch, dry them thoroughly afterward. Damp potatoes tend to steam rather than roast.
- Season. In a large bowl, toss the potato cubes with the olive oil, salt, pepper, garlic powder, and dried rosemary or thyme, if using. Make sure the oil and seasoning coat the pieces evenly. Do not add fresh garlic at this point; it can burn during the long, high-heat roast.
- Arrange on the pan. Carefully remove the hot baking sheet from the oven. Spread the potatoes over it in a single layer, leaving a little space between pieces. Use two pans if necessary rather than crowding them. Keep hands clear of the hot pan and watch for splattering oil.
- Roast until browned and tender. Return the pan to the oven and roast for 30 to 40 minutes, turning the potatoes with a spatula after about 18 to 20 minutes. They are ready when the edges are deeply golden and a fork slides easily into the centers. Smaller cubes may finish sooner; larger cubes may need the full time.
- Finish and serve. Taste and add a little more salt if needed. Sprinkle with fresh parsley, if desired, and serve hot.
Tips
- Choose a potato for the texture you want. Yukon Gold potatoes hold their shape and have creamy centers; russets roast up fluffier inside with crisp edges. Either works well, but their skins and textures differ.
- Keep the cubes even and the pan uncrowded. Uneven pieces cook at different rates, while crowded potatoes release moisture and soften. A second baking sheet is better than piling the potatoes together.
- Dry thoroughly and use enough oil to coat. Water on the surface makes it harder for the potatoes to brown. The potatoes should look lightly glossy, not greasy or swimming in oil.
- Adjust seasoning thoughtfully. Use fine salt in a slightly smaller amount than the stated kosher salt, then taste after roasting. For extra flavor, add paprika or onion powder with the other dry seasonings.
Serving Suggestions
Serve these potatoes alongside eggs for breakfast or brunch, or pair them with roasted chicken, steak, pork chops, or baked fish for dinner. They also work well with a green salad, sautéed vegetables, or beans when you want a simple meatless meal. Offer ketchup, garlic aioli, sour cream, or a herby yogurt sauce on the side. Add sauces just before eating so the crisp edges do not soften.
Variations
Smoky paprika: Add 1 teaspoon smoked paprika and a pinch of cayenne with the dry seasonings. Parmesan and herbs: Toss the cooked potatoes with 2 tablespoons finely grated Parmesan and chopped parsley as soon as they come out of the oven. Lemon and rosemary: Add finely grated lemon zest and a squeeze of lemon after roasting, along with the rosemary. Spicy potatoes: Add 1/4 teaspoon chili flakes or cayenne to the oil mixture. For any variation, avoid adding delicate fresh herbs or cheese before roasting unless the recipe specifically calls for it; they can scorch.
Storage and Reheating
Let leftover potatoes cool, then refrigerate them in a covered container within 2 hours of cooking. Keep them refrigerated at 40°F (4°C) or below and use within 3 to 4 days. For food safety, discard cooked potatoes left at room temperature longer than 2 hours, or longer than 1 hour if the temperature is above 90°F (32°C). Do not leave them out to cool overnight.
For the best texture, reheat in a single layer on a baking sheet at 400°F (205°C) for about 10 to 15 minutes, turning once, until piping hot throughout. An air fryer at 375°F (190°C) usually takes 5 to 8 minutes, depending on the amount. A microwave is quicker but makes the edges soft; heat in short bursts, stirring once, until steaming hot. Reheat only the portion you plan to eat, and do not repeatedly cool and reheat the same leftovers.
Frequently Asked Questions
Do I need to peel the potatoes?
No. Scrub them well and leave the skins on for extra texture and less prep. Peel them if you prefer a smoother, more uniform bite, especially with russets that have thicker skins.
Should I soak or parboil the potatoes first?
Neither is necessary for this method. Rinsing or briefly soaking cut potatoes can remove some surface starch, but it is optional; dry them very well before adding oil. Parboiling adds a step and is not needed for small, evenly cut cubes.
Why are my diced potatoes not crispy?
The most common causes are a crowded pan, wet potatoes, a baking sheet that was not hot, or an oven that runs cool. Spread the cubes out, dry them well, and roast at 425°F (220°C). If the potatoes are tender but pale, give them a few more minutes.
Can I prepare them ahead?
You can cut the potatoes a few hours ahead and keep them covered in cold water in the refrigerator to prevent discoloration. Drain and dry them thoroughly before seasoning. For the crispest result, roast just before serving rather than seasoning and storing them raw.
Can I freeze roasted diced potatoes?
Yes, though they may be softer after thawing. Cool them promptly, freeze in a single layer until firm, and transfer to a freezer-safe container for up to 2 months for best quality. Reheat from frozen in a 400°F (205°C) oven until hot and crisp at the edges.
Can I use a different oil?
Yes. Use a neutral oil such as avocado, canola, or vegetable oil in the same quantity. Choose an oil suitable for roasting at 425°F (220°C); extra-virgin olive oil also works well at this temperature.