How to cook purple sweet potatoes with a fabulous parmesan cheese and rosemary crust. This recipe instructs you how to achieve a crispy, flavorful outside encasing a soft, creamy center. You WILL love the simplicity of the method!
1.5lbspurple sweet potato varietyStokes or Okinawan
1tablespooncorn starch
¼cupgrated parmesan cheese
4sprigs rosemary
4tablespoonolive oil*
1teaspoonground black pepperor to taste
2teaspoonkosher saltor to taste
Instructions
Preheat oven to 425 F and line a baking sheet with parchment paper.
Peel the purple sweet potatoes and cut them into as uniform bite-sized pieces as you can. Place them in a large bowl and dust them with the corn starch. Mix them to make sure they are evenly coated.**
Very finely chop the rosemary and in a small bowl mix it with the grated parmesan, olive oil and salt and pepper. Pour the mixture over the starched potatoes and stir to make sure they get nicely coated.
Transfer the coated potatoes to the prepared baking sheet and space them as evenly as you can. Roast for fifteen minutes, then use a spatula to flip them over. Taste one to assess how tender they have become. Based on your findings continue roasting for another 5 to 10 minutes, as needed, until in your judgement they are cooked through and crispy on the outside.
Notes
*Extra virgin olive oil will lend more robust, fruity flavor. We recommend it.** These tips ensure that your purple potatoes will have a wonderfully crispy outside.
cut them into even pieces - the more similarly sized and shaped they are, the more evenly they will cook.
don't skip the corn starch - it absorbs moisture from the surface of the cut potatoes and helps the parmesan mixture adhere.
space them as evenly as you canon the baking sheet - to allow for better air circulation, even if your oven is fan assisted ie. convection/has an air fryer option.