Sweet Potato Hash Browns

Bahan-bahan (6 porsi)

• 2 medium sweet potatoes (peeled and shredded (about 4 1/2 cups) - see blog post for tips)
• 2 tablespoons extra-virgin olive oil (divided)
• ½ teaspoon salt
• ½ teaspoon ground black pepper
• ¼ teaspoon garlic powder
• ¼ teaspoon chipotle chili powder (optional but delicious)
• 2 tablespoons unsalted butter