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Roasted Purple Sweet Potatoes

This recipe celebrates the purple sweet potato in its best form with minimal fuss and maximum flavor. The natural sugars caramelize during roasting, creating crispy edges while the inside stays tender and fluffy.
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Prep Time 10 minutes
Cook Time 30 minutes
Total Time 40 minutes
Servings: 4 servings
Course: Side Dish
Cuisine: American
Calories: 185
Ingredients Equipment Method Notes

Ingredients
  

Main
  • 2 pounds purple sweet potatoes scrubbed clean and cut into 1-inch cubes
  • 3 tablespoons olive oil or avocado oil
  • 1 teaspoon sea salt
  • 1/2 teaspoon black pepper freshly ground
  • 1/2 teaspoon garlic powder
Optional
  • 1/4 teaspoon smoked paprika for extra depth
  • Fresh herbs like rosemary or thyme for garnish

Equipment

  • Large baking sheet or rimmed sheet pan
  • Parchment paper or silicone baking mat
  • Sharp chef's knife or santoku knife
  • Cutting board
  • Large mixing bowl
  • Measuring spoons
  • Kitchen tongs or spatula for flipping

Method
 

  1. Preheat your oven to 425°F (220°C) and line a large baking sheet with parchment paper or a silicone mat.
  2. Scrub the purple sweet potatoes under cold running water to remove any dirt, then pat them completely dry with a clean kitchen towel. Cut them into uniform 1-inch cubes, keeping the pieces similar in size so they cook evenly.
  3. Place the cubed sweet potatoes in a large mixing bowl and drizzle with the olive oil. Add the salt, black pepper, and garlic powder, then use your hands or a large spoon to toss everything together until each piece is evenly coated.
  4. Spread the seasoned sweet potato cubes in a single layer on your prepared baking sheet, making sure none of them touch or overlap.
  5. Place the baking sheet on the middle rack of your preheated oven and roast for 15 minutes without touching them.
  6. After 15 minutes, use kitchen tongs or a spatula to flip each piece so a new side contacts the hot pan. Return the pan to the oven and roast for another 15 minutes until the potatoes are fork-tender and have crispy, caramelized edges on multiple sides.
  7. Pierce a few pieces with a fork to ensure they're tender all the way through while the edges look golden and slightly crispy. If they need more time, give them another 5 minutes.
  8. Remove the baking sheet from the oven and let the sweet potatoes rest for 2 to 3 minutes before transferring to a serving dish. Garnish with fresh herbs if desired and serve immediately while they're still hot.

Notes

For extra crispy sweet potatoes, toss them with a tablespoon of cornstarch or arrowroot powder along with the oil and seasonings. This creates an even crispier coating that stays crunchy longer. Store cooled roasted purple sweet potatoes in an airtight container in the refrigerator for up to 5 days. Reheat in a 400°F oven for 10 to 12 minutes to restore the crispy exterior.