large yellow sweet potatoes, fresh and hard, about a pound • large red yam, fresh and hard, about a pound • high smoke point (500F) avocado oil, peanut oil (450F) or grapeseed oil (400 F) • choice of pepper, garlic powder, onion powder, sweet paprika powder • Sprinkle of Flaked Maldon sea salt • Homemade mayonnaise, or • Homemade ketchup, or • Homemade avocado mayonnaise, or • Homemade eggplant mayonnaise