To prepare a spiralized brown butter sage sweet potato recipe, you will first need to prepare your sweet potatoes. Spiralized Sweet Potatoes can be purchased at most grocery stores or you can make your own at home. Peel and slice your Sweet potatoes lengthwise. Cut the Sweet potato in half and scoop out the seeds. Place the flesh side down on the cutting board. Use your fingers to scrape the inside of the potato with your hands to remove the skin.