Why You’ll Love The Best Crispy Roast Potatoes Ever Recipe
The contrast in texture is what makes these roast potatoes so satisfying. Their rough, starchy surfaces become exceptionally crisp in the oven while the large pieces stay tender and fluffy inside.
Starting the potatoes in boiling alkaline water helps soften their outer layer. Once drained and tossed vigorously with seasoned oil, that softened starch forms a coating that turns crunchy and golden during roasting.
Infusing the cooking fat with rosemary and garlic is another useful technique. You get their flavor throughout the potatoes while saving the actual garlic and herbs until the end, preventing them from becoming bitter or burned.
You can also customize the recipe easily. Olive oil keeps things simple and plant-based, while duck fat, goose fat, or beef fat can provide a richer, more savory flavor.
Ingredients
(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)
- Kosher salt
- 1/2 teaspoon baking soda
- 4 pounds russet or Yukon Gold potatoes, peeled and cut into large chunks
- 5 tablespoons extra-virgin olive oil, duck fat, goose fat, or beef fat
- Small handful fresh rosemary leaves, finely chopped
- 3 medium garlic cloves, minced
- Freshly ground black pepper
- Small handful fresh parsley leaves, minced
Russet potatoes are an excellent choice when maximum crunch and a fluffy interior are the priority. Yukon Gold potatoes develop a slightly deeper golden color and offer a creamier center. A combination of the two varieties also works very well.
Directions
- Position an oven rack in the center and preheat the oven to 450°F (230°C). For a convection oven, use 400°F (200°C).
- Bring about 2 quarts of water to a boil in a large pot. Season generously with kosher salt and add the baking soda.
- Carefully add the potatoes. Bring the water back to a boil, reduce it to a steady simmer, and cook until the pieces are tender enough that a knife slides into them with little resistance, about 10 minutes after the water returns to a boil.
- While the potatoes cook, place your chosen oil or fat in a small saucepan with the chopped rosemary, minced garlic, and several grinds of black pepper. Cook over medium heat for about 3 minutes, stirring frequently, just until the garlic begins to turn golden.
- Strain the infused oil into a large heatproof bowl, reserving the cooked garlic and rosemary separately for later.
- Drain the potatoes carefully and leave them for about 30 seconds so excess steam and moisture can escape.
- Transfer the potatoes to the bowl containing the infused oil. Season with additional salt and pepper. Toss and shake them fairly vigorously until the outside of each piece becomes rough and develops a noticeable coating of starchy potato.
- Spread the potatoes in a single layer on a large rimmed baking sheet. Leave enough room between the pieces so they roast rather than steam.
- Roast without disturbing them for approximately 20 minutes. Once their bottoms have developed a crust, carefully loosen and turn the potatoes.
- Continue roasting for another 30 to 40 minutes, turning and shaking the potatoes a few times, until they are deeply golden brown and crisp on every side.
- Transfer the hot potatoes to a serving bowl. Add the reserved garlic and rosemary along with the fresh parsley. Toss well, adjust the salt and pepper to taste, and serve immediately.
Servings and timing
This recipe makes approximately 6 to 8 servings.
Preparation time: 10 minutes
Cooking time: 1 hour 15 minutes
Total time: 1 hour 25 minutes
For the best texture, plan to serve the potatoes soon after they come out of the oven. Their exterior is at its crunchiest while they are still piping hot.
Variations
Garlic and thyme: Replace the rosemary with fresh thyme for a milder, earthy herb flavor.
Lemon herb: Add a little finely grated lemon zest with the parsley after roasting. The fresh citrus flavor works especially well when serving the potatoes with chicken or fish.
Parmesan: Toss the finished potatoes with finely grated Parmesan while they’re still hot. The cheese adds a salty, savory finish.
Spicy roast potatoes: Add crushed red pepper flakes, cayenne, or smoked paprika to the infused oil for a warmer flavor.
Duck-fat potatoes: Replace olive oil with duck fat for especially rich, savory potatoes that work beautifully alongside roasted meat.
Mixed potato version: Combine russet and Yukon Gold potatoes to get a mixture of fluffy and creamy interiors with slightly different levels of browning.
Extra-herby potatoes: Finish with a combination of parsley, chives, rosemary, and thyme for a fresher, more aromatic side dish.
Storage/Reheating
Allow leftover potatoes to cool before transferring them to an airtight container. Refrigerate for up to 3 to 4 days.
The oven is the best option for reheating because it helps restore the crispy exterior. Spread the potatoes on a baking sheet and heat at about 400°F (200°C) until hot and crisp, usually 10 to 15 minutes depending on their size.
An air fryer also works well. Reheat the potatoes at approximately 375°F to 400°F (190°C to 200°C) for several minutes, shaking the basket occasionally.
Microwaving is convenient, but the potatoes will become much softer and won’t regain the same crisp exterior.
You can also freeze cooked roast potatoes. Freeze them in a single layer first, then transfer them to a freezer-safe container or bag. Reheat them directly from frozen in a hot oven until heated through and crisp.
FAQs
Why does baking soda make roast potatoes crispier?
Baking soda makes the cooking water alkaline, which encourages the outer layer of the potatoes to break down. When the cooked potatoes are tossed, this softened exterior creates a rough, starchy coating. That coating loses moisture and becomes exceptionally crisp during roasting.
What are the best potatoes for crispy roast potatoes?
Russet and Yukon Gold potatoes are both excellent choices. Russets generally produce a lighter, crunchier crust with fluffy centers, while Yukon Golds tend to have creamier interiors, deeper flavor, and darker browning.
Do I have to peel the potatoes?
No. You can leave the skins on if you prefer a more rustic result. Peeling them, however, gives you more exposed potato surface that can develop the rough, starchy coating responsible for the distinctive crispy crust.
Why should I rough up the potatoes before roasting?
Roughing up the boiled potatoes creates tiny ridges, flakes, and starchy edges. These irregular surfaces provide more area for the hot oil to coat and for the oven’s heat to crisp, resulting in significantly more crunch than you’d get from smooth potato pieces.
Why aren’t my roast potatoes crispy?
The potatoes may have been overcrowded, insufficiently dried, roasted at too low a temperature, or moved too early. Use a large baking sheet, spread the pieces apart, allow excess moisture to evaporate after boiling, and roast at high heat.
Can I prepare these potatoes ahead of time?
Yes. You can parboil and rough up the potatoes ahead of time, allow them to cool, and refrigerate them until you’re ready to roast. For the best finished texture, roast them shortly before serving rather than fully cooking and reheating them.
Can I make these roast potatoes vegan?
Yes. Use extra-virgin olive oil instead of duck, goose, or beef fat. The potatoes will still become wonderfully crisp, and the rosemary, garlic, parsley, and black pepper provide plenty of flavor.
Can I use red potatoes?
You can, but they aren’t the best choice when maximum crispness is the goal. Their lower starch content means they generally don’t develop the same rough, crunchy exterior as russet potatoes. Yukon Gold potatoes are a better alternative if russets aren’t available.
How large should I cut the potatoes?
Keep the pieces quite large, roughly 2 to 3 inches. Depending on the size of the potato, that generally means cutting it into quarters, sixths, or eighths. Large pieces provide plenty of surface for browning while retaining a substantial soft center.
Can I make crispy roast potatoes in an air fryer?
Yes, although you’ll probably need to work in batches. Parboil, drain, rough up, and season the potatoes using the same general technique, then arrange them in the air-fryer basket with enough space for hot air to circulate. Cook until deeply golden and crisp, turning or shaking them periodically.
Conclusion
These crispy roast potatoes turn a simple ingredient into a standout side dish by focusing on texture at every stage. Parboiling the potatoes with baking soda, roughing up their softened surfaces, coating them in aromatic infused oil, and roasting them at high heat creates an exceptionally crunchy crust while preserving a tender, fluffy center.
Finished with rosemary, garlic, and fresh parsley, they’re flavorful enough for a holiday table yet simple enough for an everyday dinner. Once you learn the technique, it’s also easy to customize the herbs, seasonings, and cooking fat to complement whatever you’re serving.
The Best Crispy Roast Potatoes Ever
Ultra-crispy roast potatoes with deeply browned, crunchy exteriors and fluffy, creamy centers, finished with garlic and herbs.
- Prep Time: 10 minutes
- Cook Time: 1 hour 20 minutes
- Total Time: 1 hour 30 minutes
- Yield: 6 to 8 servings
- Category: Side Dish
- Method: Roasting
- Cuisine: American
- Diet: Vegan
Ingredients
- 4 pounds russet or Yukon Gold potatoes, peeled and cut into large chunks
- Kosher salt
- 1/2 teaspoon baking soda
- 5 tablespoons extra-virgin olive oil, duck fat, goose fat, or beef fat
- Small handful fresh rosemary leaves, finely chopped
- 3 medium cloves garlic, minced
- Freshly ground black pepper
- Small handful fresh parsley leaves, minced
Instructions
- Preheat the oven to 450°F (230°C), or 400°F (200°C) if using convection.
- Bring a large pot of water to a boil. Season generously with kosher salt, add the baking soda and potatoes, and return to a boil. Reduce to a simmer and cook until the potatoes are tender and offer little resistance when pierced.
- Meanwhile, combine the fat with rosemary and garlic in a small saucepan. Cook over medium heat, stirring and shaking the pan frequently, until the garlic just begins to turn golden. Strain the infused fat into a large bowl and reserve the garlic and rosemary.
- Drain the cooked potatoes and let them rest briefly so excess moisture evaporates. Transfer them to the bowl with the infused fat, season with salt and pepper, and toss vigorously until a thick, mashed-potato-like coating forms on their surfaces.
- Spread the potatoes on a large rimmed baking sheet in a single layer with space between the pieces. Roast for about 20 minutes without moving them.
- Turn the potatoes and continue roasting, turning and shaking occasionally, until they are deeply browned and crisp on all sides, about 30 to 40 minutes longer.
- Transfer the potatoes to a large bowl. Add the reserved garlic and rosemary along with the parsley, toss to coat, adjust seasoning, and serve immediately.
Notes
- Russet potatoes produce especially crisp exteriors, while Yukon Gold potatoes offer a creamier texture and richer flavor.
- Baking soda raises the alkalinity of the cooking water, helping break down the potato surfaces so they become exceptionally crisp during roasting.
- For the best browning, avoid overcrowding the baking sheet.
- Duck, goose, or beef fat can be used instead of olive oil for a richer flavor.
Nutrition
- Serving Size: 1 serving
- Calories: 290 kcal
- Sugar: 2 g
- Sodium: 420 mg
- Fat: 9 g
- Saturated Fat: 1.5 g
- Unsaturated Fat: 7.5 g
- Trans Fat: 0 g
- Carbohydrates: 49 g
- Fiber: 5 g
- Protein: 6 g
- Cholesterol: 0 mg
