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Crispy Roast Potatoes

Prep Time 20 minutes
Parboil Time 10 minutes
Roast Time 50 minutes
Total Time 1 hour 20 minutes
Difficulty Level Easy to Intermediate
Intensity Level Moderate (Requires active tossing and attention to timing)
Servings 6 generous portions

Ingredients Checklist

For the Potatoes

  • 4 lbs (1.8 kg) Russet or Yukon Gold Potatoes (peeled and cut into large $1.5$ to $2$-inch chunks)

  • 1 tbsp Kosher Salt (for the boiling water)

  • 1/2 tsp Baking Soda (essential for the crisp coating)

For the Infused Herb & Garlic Oil

  • 1/2 cup (120 ml) High-Heat Oil or Animal Fat (Extra virgin olive oil, duck fat, beef tallow, or avocado oil)

  • 6 cloves Fresh Garlic (minced or finely smashed)

  • 2 tbsp Fresh Rosemary (finely chopped)

  • 1 tbsp Fresh Thyme (finely chopped)

  • 1/2 tsp Freshly Cracked Black Pepper

  • Flaky Sea Salt (Maldon or similar, for finishing)

Step-by-Step Instructions

1.Prep the Oven & Baking Sheet:Preheating ensures instant sizzle.

Preheat your oven to $220^\circ\text{C}$ ($425^\circ\text{F}$) with a rack placed in the lower-third position. Place a large, heavy rimmed baking sheet into the oven while it heats so the metal gets scorching hot before the potatoes hit the surface.

2.Parboil in Alkaline Water:Creates the critical surface starch layer.

Bring $2.5$ to $3$ quarts of water to a rolling boil in a large stockpot over high heat. Add 1 tablespoon of kosher salt and 1/2 teaspoon of baking soda. Drop in the potato chunks. Once returned to a boil, reduce the heat to medium-low and simmer gently for 8 to 10 minutes until a paring knife inserts into a potato chunk with slight resistance.

3.Infuse the Roasting Oil:Gives intense garlic-herb flavor without burning.

While the potatoes boil, combine 1/2 cup oil (or melted fat), minced garlic, chopped rosemary, and chopped thyme in a small saucepan over medium-low heat. Cook for 3 to 4 minutes until the garlic is lightly golden and fragrant. Immediately strain the oil through a fine-mesh sieve into a large bowl, reserving the garlic-herb mixture for later.

4.Drain & Rough Up the Potatoes:The key secret to maximum crunch.

Drain the parboiled potatoes thoroughly in a colander and let them sit for 2 minutes to steam-dry. Transfer the warm potatoes to the large bowl with the infused oil. Season with 1 teaspoon of kosher salt and a pinch of black pepper. Shake the bowl vigorously for 15 to 20 seconds. The edges should break down into a thick, paste-like starch slurry.

5.Roast to Perfection:Turn halfway for even browning.

Carefully pull the hot baking sheet from the oven. Pour the potatoes onto the sheet—they should sizzle immediately. Spread them into a single layer with space between each chunk. Roast undisturbed for 30 minutes. Remove the pan, turn each potato chunk with tongs or a metal spatula, and return to the oven for another 20 to 25 minutes until deeply golden and crisp.

6.Toss with Herbs & Serve:Final burst of flavor.

Transfer the hot potatoes to a large serving bowl. Add the reserved crispy garlic-herb mixture and a generous pinch of flaky sea salt. Toss gently to combine. Serve immediately while roaring hot.

 

Pro Tips for Web Cooks

  • Don’t Crowd the Pan: If the potato chunks are touching or layered on top of each other, they will trap steam and turn soft rather than crisp. Use two baking sheets if needed.

  • Choose the Right Potato: Russet potatoes yield the crunchiest shell with a light, dry interior. Yukon Golds produce a slightly sweeter, creamier interior with a crisp, golden skin.

  • Make-Ahead Strategy: Parboil and rough up the potatoes up to 24 hours in advance. Keep them covered in the refrigerator on a baking sheet, then roast straight from cold, adding 5 extra minutes to the initial roasting stage.

Storage & Reheating Instructions

  • Refrigeration: Store leftover roast potatoes in an airtight container in the refrigerator for up to 4 days.

  • Reheating in Oven: Preheat oven or toaster oven to $200^\circ\text{C}$ ($400^\circ\text{F}$). Spread potatoes on a baking sheet and heat for 10–12 minutes until sizzling and re-crisped.

  • Air Fryer Reheating: Air fry at $190^\circ\text{C}$ ($375^\circ\text{F}$) for 4 to 6 minutes for optimal crunch restored in minutes.

Estimated Nutritional Information

Values are calculated per individual serving (based on 6 total servings).

Nutrient Amount Per Serving % Daily Value*
Calories 295 kcal
Total Fat 14 g 18%
Saturated Fat 2.0 g 10%
Trans Fat 0 g
Cholesterol 0 mg 0%
Sodium 480 mg 21%
Total Carbohydrate 39 g 14%
Dietary Fiber 4.5 g 16%
Total Sugars 2.1 g
Protein 4.8 g 10%
Vitamin C 28 mg 31%
Potassium 890 mg 19%
Calcium 32 mg 2%
Iron 1.8 mg 10%

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