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Roasted Potatoes Recipe

Roasted Potatoes

The main challenge with roasting different types of potatoes together is that they cook at different speeds. This recipe solves that by giving the dense russets a head start in a hot oven. Soaking the potatoes first is an extra step, but it's the secret to removing excess starch, which results in a fluffier interior and a much crispier, golden-brown exterior.
Prep Time30 minutes
Active Time45 minutes
Total Time1 hour 15 minutes

Ingredients

  • 3 large russet potatoes ~2 lbs, cut into 1-inch cubes
  • 2 medium sweet potatoes ~1.5 lbs, peeled and cut into 1-inch cubes
  • 1 red onion cut into 1-inch pieces
  • 1/4 cup avocado oil
  • 1.5 teaspoons dried rosemary
  • 1 teaspoon dried thyme
  • 1 teaspoon garlic powder
  • 2 teaspoons Diamond Crystal kosher salt
  • 1 teaspoon black pepper

Instructions

  • Place the cubed russet potatoes in a large bowl of cold water, and the sweet potatoes and onion in another bowl of water.
  • Soak for 20 minutes until the russet water becomes cloudy.
  • Preheat the oven to 400F.
  • Drain the russet potatoes and dry them thoroughly with the paper towels.
  • Toss the dried russets with 2 tablespoons of the avocado oil and half of the seasonings in a large bowl.
  • Spread the russets in a single layer on a large rimmed baking sheet and roast for 20 minutes.
  • Meanwhile, drain and thoroughly dry the sweet potatoes and onion.
  • Toss them with the remaining oil and seasonings.
  • After 20 minutes, remove the pan and add the sweet potato-onion mixture, tossing everything together on the hot pan.
  • Return to the oven and roast for 25-30 minutes more, tossing every 10-15 minutes.
  • Cook until the russets are golden and crispy outside, fluffy inside, and the sweet potatoes are tender with caramelized edges.
  • Taste and adjust salt if needed, then serve immediately while hot.

Notes

Thorough drying after soaking is essential for achieving crispy potatoes.
Any remaining moisture will create steam and prevent proper browning.