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Crispy Roasted Sweet Potatoes
4.4 from 72 votes

Crispy Roasted Sweet Potatoes

Crispy Roasted Sweet Potatoes are parboiled then coated with potato starch and olive oil before roasting, resulting in crisp edges and tender insides. The addition of fresh rosemary and black pepper enhances their savory flavor. Baking at a high temperature transforms the texture, and resting in the warm oven after cooking intensifies the crispiness. This method is practical for achieving roasted sweet potatoes with a satisfying crunch and integrated fresh herb aroma.

Prep Time
15 mins
Cook Time
55 mins
Total Time
1 hr 10 mins
Servings: 4
Calories: 233 kcal
Course: Side Dish
Cuisine: American

Ingredients

  • salt
  • ½ teaspoon baking soda
  • 2½ pounds sweet potatoes unpeeled, cut into 1½-inch (4-cm) chunks, about 3 large
  • 2 tablespoons potato starch (see note)
  • 3 tablespoons olive oil
  • 1 tablespoon rosemary divided, chopped fresh
  • ¼ teaspoon black pepper freshly ground

Instructions

    Cup of Yum
  1. Preheat the oven to 450°F (230°C) and set an oven rack in the middle position.
  2. In a large pot, bring 3 quarts (3 L) of water to a boil. Stir in 1 tablespoon of salt and the baking soda. Add the potatoes and boil for 10 minutes.Drain the potatoes thoroughly.
  3. Directly on a rimmed baking sheet (avoid using foil as the potatoes may stick), toss the par-boiled potatoes with the potato starch, oil, ½ teaspoon of salt, half of the rosemary, and the pepper. Roast in the preheated oven for 35 minutes, stirring once midway through roasting. After roasting, turn off the oven but leave the potatoes inside for an additional 10 to 15 minutes.
  4. Remove from the oven and sprinkle with the remaining rosemary. Taste and adjust the seasoning with salt, if necessary. Transfer the sweet potatoes to a platter and serve.

Notes

  • Potato starch is crucial for crispiness; typically found in baking, gluten-free, or international aisles.
  • Salt absorbed during boiling is estimated; adjust seasoning after roasting to taste.
  • If unsure where to find potato starch, ask store employees for help.

Nutrition Information

Calories 233kcal (12%) Carbohydrates 41g (14%) Protein 3g (6%) Fat 7g (11%) Saturated Fat 1g (5%) Sodium 463mg (19%) Fiber 6g (24%) Sugar 8g (16%)

Nutrition Facts

Serving: 4 Serving

Amount Per Serving

Calories 233

% Daily Value*

Calories 233kcal 12%
Carbohydrates 41g 14%
Protein 3g 6%
Fat 7g 11%
Saturated Fat 1g 5%
Sodium 463mg 19%
Fiber 6g 24%
Sugar 8g 16%

* Percent Daily Values are based on a 2,000 calorie diet.