So to make these sweet potato patties, you’ll first cook up your sweet potatoes. You can use leftover sweet potatoes that have been mashed (but not too seasoned), or leftover roasted sweet potatoes. Or I cook them a super easy way, peeled, cubed, and cooked up for a few minutes in the microwave. You’ll cook them till their soft and mashable, then set them aside. You’ll then cook up some diced onions in some butter. Mix that in with the mashed sweet potatoes. Then add in an egg, all purpose flour, and some salt. Mix it all together. Scoop up about 1/4 cup of the sweet potato mash and put it into the frying pan and heat it over medium heat. Shape the patties as much as you can and flatten them to be about 1/2 inch thick. Cook them up for about 1-2 minutes on each side and then voila.